| Half a diameter | 15 |
| What r can mean, in geometry | 28 |
| The R in piR^2 | 14 |
| The "r" of "pi r squared" | 45 |
| Range of operation | 18 |
| Line from the center to the perimeter of a circle | 49 |
| Half measure | 12 |
| Figure that's squared in a common formula | 45 |
| Distance on a radar screen | 26 |
| Circle spoke | 12 |
| Bicycle spoke, for example | 26 |
| Some geometry class lines | 25 |
| Circle segments (Var.) | 22 |
| Plant root | 10 |
| Base of a number system | 23 |
| Root of a plant | 15 |
| Mathematical base | 17 |
| Math base | 9 |
| e, in natural logarithms | 24 |
| Base, in linguistics | 20 |
| 10, for the base 10 number system | 33 |
| Numbers taken as the base of a system of numbers | 48 |
| Base numbers, in math | 21 |
| Harper Lee recluse Boo __ | 25 |
| Boo ___, recluse in "To Kill a Mockingbird" | 53 |
| USN brass | 9 |
| USN bigshot | 11 |
| U.S.N. two-star officer | 23 |
| One letter changes a Gilda to a Rita | 36 |
| "Hair" lyricist James | 31 |
| "Hair" co-writer James | 32 |
| Swiss watchmaker | 16 |
| "Hair" co-author James | 32 |
| TAG Heuer competitor | 20 |
| Swiss watch that's the official timekeeper of the French Open | 65 |
| Swiss watch | 11 |
| Pricey Swiss watch brand | 24 |
| One of the "Hair" writers | 35 |
| Maker of the V10K, the world's hardest watch | 48 |
| Maker of Anatom and Cerix watches | 33 |
| James who co-wrote "Hair" | 35 |
| Fancy Swiss watch company | 25 |
| Co-author of "Hair" | 29 |
| A "Hair" lyricist | 27 |
| "Hair" co-writer | 26 |
| "Hair" co-lyricist | 28 |
| "Hair" co-author | 26 |
| Semicircular antenna housing | 28 |
| Antenna shelter | 15 |
| Antenna housing | 15 |
| Radar antenna housing | 21 |
| Radar antenna covering | 22 |
| Antenna cover | 13 |
| Antenna housings | 16 |
| Radar antenna housings | 22 |
| Antenna housings on aircraft | 28 |
| GAS INCLUDED! | 13 |
| "The Color Purple" actress, in her element? | 53 |
| Home inspection procedure | 25 |
| They're carried out with detection kits | 43 |
| Journalist/blogger Daniel | 25 |
| Like all the "Godfather" movies | 41 |
| Part of a mollusk's mouth | 29 |
| Scottish painter | 16 |
| Carriage for Cicero | 19 |
| Actress ___ Chong | 17 |
| German navy V.I.P.: 1928-43 | 27 |
| German admiral: 1876–1960 | 32 |
| Cult leader in 2002 news | 24 |
| Religious believer that humankind is descended from aliens | 58 |
| One who maintains that scientists from another planet created all life on Earth | 79 |
| One who believes humans descended from extraterrestrials | 56 |
| Assert passionately, literally | 30 |
| Tennis's Nadal, familiarly | 30 |
| Tennis player Nadal's nickname | 34 |
| Popular nickname for tennis star Nadal | 38 |
| Nadal's nickname | 20 |
| Nadal of tennis, familiarly | 27 |
| Court star Nadal, informally | 28 |
| "The King of Clay," familiarly | 40 |
| Spanish tennis star | 19 |
| Roger Federer rival | 19 |
| First tennis player to simultaneously hold Grand Slams on clay, grass and hardcourt | 83 |
| Novelist Sabatini et al. | 24 |
| Olympic track great Johnson, familiarly | 39 |
| Nickname for trackman Johnson | 29 |
| McCawley played by Ben Affleck in 'Pearl Harbor' | 56 |
| Male protagonist in William Inge's "Good Luck, Miss Wyckoff" | 74 |
| Ben's role in "Pearl Harbor" | 42 |
| Ben Affleck's "Pearl Harbor" role | 47 |
| Ben Affleck, in "Pearl Harbor" | 40 |
| Author Raphael Gibbs, to his friends | 36 |
| "Life of Pi" actor Spall | 34 |
| ___ McCawley, Ben Affleck's role in "Pearl Harbor" | 64 |
| Triangular topsail | 18 |
| Certain topsails | 16 |
| Disreputable | 12 |
| Picaresque | 10 |
| Crude but dashing | 17 |
| Sold chances | 12 |