| Class that's "hard," according to a talking Barbie doll | 69 |
| Class with a take-home, open-book, true-false final, say | 56 |
| Class with the periodic table on the wall, often: Abbr. | 55 |
| Classes taken to boost one's grade point average | 52 |
| Classic '50s sitcom (with ''The'') | 54 |
| Classic '80s video game in which one draws with a diamond marker | 68 |
| Classic "S.N.L." character who spoke with rounded R's | 67 |
| Classic 1740 romance subtitled "Virtue Rewarded" | 58 |
| Classic 1928 musical set in London, with "The" | 56 |
| Classic 1982 movie line spoken with an outstretched finger | 58 |
| Classic actress who played the principal in "Grease" | 62 |
| Classic answer to "Where's your homework?" | 56 |
| Classic arcade game character who hopped around a pyramid | 57 |
| Classic author who was the subject of a 1952 film musical | 57 |
| Classic battles between the Giants and Dodgers, e.g. | 52 |
| Classic Bette Davis line from "Beyond the Forest" | 59 |
| Classic black-and-white film featuring gigantic irradiated ants | 63 |
| Classic Bob Marley song that was a 1973 hit for Johnny Nash | 59 |
| Classic Bob Uecker line from "Major League" | 53 |
| Classic Broadway musical with the song "Alice Blue Gown" | 66 |
| Classic car in the "All in the Family" theme song | 59 |
| Classic car in the Beach Boys' "Fun, Fun, Fun" | 60 |
| Classic cars that were the first to have Ram Air engines | 56 |
| Classic character on "The Eddie Cantor Radio Show" | 60 |
| Classic children's book left in the sun too long? | 53 |
| Classic Chinese military treatise, with "The" | 55 |
| Classic computer game set on a seemingly deserted island | 56 |
| Classic Disney film that includes "The Nutcracker Suite" | 66 |
| Classic film character whose last word was "Rosebud" | 62 |
| Classic Frances Hodgson Burnett children's novel | 52 |
| Classic game show host who moonlights with a Canadian police force? | 67 |
| Classic Hans Christian Andersen story, with "The" | 59 |
| Classic Hawaiian song whose title means "Farewell to Thee" | 68 |
| Classic jazz composition by Duke Ellington and Barney Bigard | 60 |
| Classic laugh-inducing parlor game with writing or illustrations | 64 |
| Classic Massachusetts vacation spot, with "the" | 57 |
| Classic name heard in the 1962 hit "Monster Mash" | 59 |
| Classic novel with a chapter titled "My Breaking In" | 62 |
| Classic novelty advertised in the backs of comic books | 54 |
| Classic of English children's literature, with "The" | 66 |
| Classic phrase added to the end of Chinese fortune cookie fortunes | 66 |
| Classic poem that begins "I think that I shall never see" | 67 |
| Classic response to "where's the leftover pizza?" | 63 |
| Classic schoolyard activity, and theme of this puzzle | 53 |
| Classic show tune, or another phrase said before sex | 52 |
| Classic singer with the 2005 album "Rock Swings" | 58 |
| Classic sitcom that jumped from CBS to ABC after its first season | 65 |
| Classic soft drink with orange, grape and peach flavors | 55 |
| Classic song about an Irish lass that was a #1 hit in 1913 and 1947 | 67 |
| Classic song featured in "Lilo & Stitch" | 54 |
| Classic song from the 1913 "Ziegfeld Follies" | 55 |
| Classic song that begins "And now the end is near" | 60 |
| Classic song that's the official anthem of the European Union | 65 |
| Classic storyteller who wrote under the pseudonym Knickerbocker | 63 |
| Classic Studebaker whose name means "Forward!" in Italian | 67 |
| Classic Studebaker whose name means "forward" in Italian | 66 |
| Classic toy company whose name is its founder's middle name | 63 |
| Classic treatise whose first chapter is "Laying Plans" | 64 |
| Classic TV comic whose tag line was "Oh ye-e-e-ah!" | 61 |
| Classic verse from the collection "Mountain Interval" | 63 |
| Classic verse that begins "Ah, broken is the golden bowl!" | 68 |
| Classic war film with "Hawkeye" and "Hot Lips" | 66 |
| Classic whodunit, "The List of ___ Messenger" | 55 |
| Classic with the subtitle “A Study of Provincial Life” | 62 |
| Classic writer's manual, and an alternate title for this puzzle | 67 |
| Classical musician whose career has had its ups and downs? | 58 |
| Classical piece in which "hot sauce" is sung repeatedly? | 66 |
| Classical subject of a Velázquez painting in the Prado | 57 |
| Classically named Martian crater visited by the Opportunity rover | 65 |
| Claude who played Sheriff Lobo in "B.J. and the Bear" | 63 |
| Clauses found in some employment agreements, informally | 55 |
| Clay who was the "Idol" runner-up to Ruben Studdard | 61 |
| Clayton, who sang "I'm Chiquita Banana ..." | 57 |
| Cleaners that ought not to hit the drum, if you can help it | 59 |
| Cleaning brand that "hasn't scratched yet" | 56 |
| Cleaning method for which you might buy a pre-packaged kit | 58 |
| Cleaning product with an ingredient derived from trees | 54 |
| Cleaning product with the slogan "It's that fast" | 63 |
| Cleanser brand that "hasn't scratched yet" | 56 |
| Cleanser with the motto "Stronger than dirt!" | 55 |
| Cleansing herbs from the highest mountains of Tibet? | 52 |
| Cleese role in "Monty Python's The Meaning of Life" | 65 |
| Clement Moore's ''right jolly old elf'' | 59 |
| Clement who spoke at the first general assembly of the United Nations | 69 |
| Cleveland avenue said to have America's first traffic light, 1914 | 69 |
| Cleveland Indians outfielder Nixon or his home run pace | 55 |
| Cleveland Indians third baseman born on leap day in 1924 | 56 |
| Clichéd start of a depressingly-timed February 14th speech | 61 |
| Click a "Don't send me email" checkbox | 52 |
| Clickable item found in the seven longest Across answers | 56 |
| Clifford who co-wrote "Sweet Smell of Success" | 56 |
| Climax "Precious ___ are the moments we two can share" | 64 |
| Climax that may be simultaneous, as in three places in this grid | 64 |
| Climbing challenge that contains the Geneva spur and Khumbu icefall | 67 |
| Climbing knot wound twice as many times as a common figure | 58 |
| Clint Eastwood's onetime role in Carmel-by-the-Sea | 54 |
| Clint's ''. . . Madison County'' costar | 59 |
| Clint's ''High Plains Drifter'' co-star | 59 |
| Clint's "Trouble with the Curve" co-star | 54 |
| Clinton's secretary of health and human services | 52 |