| Third item introduced as evidence | 33 |
| Third Kiss album "___ to Kill" | 40 |
| Third largest city in South Korea | 33 |
| Third largest island in the world | 33 |
| Third largest of the Philippines | 32 |
| Third letter of the Greek alphabet | 34 |
| Third letter of the Hebrew alphabet | 35 |
| Third line on many a ballot: Abbr. | 34 |
| Third Major Leaguer to reach 500 home runs | 42 |
| Third most populous nation: Abbr. | 33 |
| Third of a Second World War movie | 33 |
| Third of Henry VIII's three Catherines | 42 |
| Third of memorable Canadian five | 32 |
| Third part of a Latin conjugation | 33 |
| Third piece of a three-piece suit | 33 |
| Third president to be assassinated | 34 |
| Third Reich propagandist Riefenstahl | 36 |
| Third sequel of a Gregory Peck classic | 38 |
| Third sign of a highway headache | 32 |
| Third word before "to be jolly" | 41 |
| Third word in "America" | 33 |
| Third word of ''America'' | 41 |
| Third word of "America the Beautiful" | 47 |
| Third word of "America" | 33 |
| Third word of "Mary's Boy Child" | 46 |
| Third word of "Moby Dick" | 35 |
| Third word of "Moby-Dick" | 35 |
| Third word of "The Aeneid" | 36 |
| Third word of beginner's Latin | 34 |
| Third year in the reign of Edward the Elder | 43 |
| Third year of the second century | 32 |
| Third ___ (dangerous part of a subway track) | 44 |
| Third-base coach's sign, perhaps | 36 |
| Third-base coach's sign, sometimes | 38 |
| Third-brightest star in a constellation | 39 |
| Third-century year of Philip the Arab's birth | 49 |
| Third-generation Japanese-American | 34 |
| Third-generation Japanese-Americans | 35 |
| Third-generation man, in the Bible | 34 |
| Third-generation release of 2012 | 32 |
| Third-largest city in Puerto Rico | 33 |
| Third-largest city in the Soviet Union | 38 |
| Third-largest island in the Caribbean | 37 |
| Third-largest of the Balearic Islands | 37 |
| Third-leading U.S. crop behind corn and wheat | 45 |
| Third-longest river of California | 33 |
| Third-most common gas in the atmosphere | 39 |
| Third-party account for a mortgager | 35 |
| Third-party candidate of '92 | 32 |
| Third-party candidate, more often than not | 42 |
| Third-person verb from Shakespeare | 34 |
| Third-place finisher in 2004 and 2008 | 37 |
| Third-winningest active baseball manager | 40 |
| Thirst and memory quencher of mythology | 39 |
| Thirst-inducing, like potato chips | 34 |
| Thirsty "It Was a Good Day" hip-hopper? | 49 |
| Thirsty desert-traveler's hallucinations | 44 |
| Thirsty's wife in "Hi and Lois" | 45 |
| Thirteen, for a bar mitzvah honoree | 35 |
| Thirteen-stringed Japanese zither | 33 |
| Thirteenth Amendment beneficiary | 32 |
| Thirteenth word of Hamlet's soliloquy | 41 |
| Thirty percent of the Earth's land surface | 46 |
| Thirty-five year old sketch comedy show | 39 |
| Thirty-fourth president's nickname | 38 |
| Thirty-second U.S. Vice President | 33 |
| Thirty-third president's monogram | 37 |
| This Across answer, appropriately | 33 |
| This and Sputnik 1 were launched on the same day | 48 |
| This answer contains a lot of letters | 37 |
| This answer contains more than nine letters | 43 |
| This answer is a four-letter word | 33 |
| This appears on a horse's neck | 34 |
| This attacks tomatoes and humans | 32 |
| This bears an image of Monticello | 33 |
| This begets itself, according to Fuller | 39 |
| This brings out gamps and bumbershoots | 38 |
| This can bring tears to your eyes | 33 |
| This can find itself in a pickle | 32 |
| This Carpenter could carry a tune | 33 |
| This causes Ferdinand to meet Miranda | 37 |
| This clue and its answer have three each | 40 |
| This clue has two of them (for short) | 37 |
| This clue is down and "out" | 37 |
| This clue's answer may be over your head | 44 |
| This clue's number in Roman numerals | 40 |
| This clue's place, aptly enough | 35 |
| This colors a photog's light | 32 |
| This could be a challenge to find | 33 |
| This could become late if mixed up | 34 |
| This could become late if mixed-up | 34 |
| This could get you a "TV-MA" rating | 45 |
| This creates "amber waves" | 36 |
| This crossword grid, when completed correctly | 45 |
| This crossword, compared to others | 34 |
| This doesn't need to be fixed, but it can be | 48 |
| This doth murder another's sleep | 36 |
| This E.G.O. arrived Oct. 16, 1888 | 33 |
| This earned many dollars for Anne Nichols | 41 |
| This ends on a sour note, with "The" | 46 |