| Thirteenth state | 16 |
| Thirteenth word of Hamlet's soliloquy | 41 |
| Thirteenth-century starter | 26 |
| Thirties gin mixers? | 20 |
| Thirties inits. | 15 |
| Thirties jazz | 13 |
| Thirties' migrant | 21 |
| Thirtieth anniversary gift | 26 |
| Thirtieth vice president | 24 |
| Thirtieth-anniversary gift | 26 |
| Thirty | 6 |
| Thirty days, or even life | 25 |
| Thirty feet | 11 |
| Thirty inches | 13 |
| Thirty minutes | 14 |
| Thirty minutes, for a Jet | 25 |
| Thirty minutes, in pro football | 31 |
| Thirty minutes, to a Charger | 28 |
| Thirty percent of L.A.? | 23 |
| Thirty percent of the Earth's land surface | 46 |
| Thirty years hence | 18 |
| Thirty ___ War | 14 |
| Thirty, en français | 22 |
| Thirty, in France | 17 |
| Thirty, in Montréal | 22 |
| Thirty, in Paris | 16 |
| Thirty-cup container | 20 |
| Thirty-day mo. | 14 |
| Thirty-fifth hue | 16 |
| Thirty-first state, briefly | 27 |
| Thirty-five year old sketch comedy show | 39 |
| Thirty-fourth president's nickname | 38 |
| Thirty-love, e.g. | 17 |
| Thirty-nine for Donat | 21 |
| Thirty-second spots | 19 |
| Thirty-second U.S. Vice President | 33 |
| Thirty-six-inch units | 21 |
| Thirty-third president's monogram | 37 |
| Thirty-two are a mouthful | 25 |
| Thirty-two Boy Scouts | 21 |
| Thirty-two card game | 20 |
| Thirty-two chessmen | 19 |
| Thirty-two degrees | 18 |
| Thirty-two fl. oz. | 18 |
| Thirty-two for players? | 23 |
| Thirty-two qts. | 15 |
| Thirty: Fr. | 11 |
| Thirtysomething group | 21 |
| Thirtysomething, e.g. | 21 |
| Thirtysomethings | 16 |
| Thirtysomethings et al. | 23 |
| This | 4 |
| This in Barcelona | 18 |
| This in Tiajuana | 17 |
| This "runs deep" | 26 |
| This (big) | 10 |
| This (girl), to Brutus | 22 |
| This (girl), to Galba | 21 |
| This (girl), to Livy | 20 |
| This above all? | 15 |
| This Across answer, appropriately | 33 |
| This amount is past due | 23 |
| This and no more | 16 |
| This and Sputnik 1 were launched on the same day | 48 |
| This and taxes are certain | 26 |
| This and that | 13 |
| This and that, say | 18 |
| This and that: Abbr. | 20 |
| This and this | 13 |
| This and ___ | 12 |
| This and ____ | 13 |
| This and _____ | 14 |
| This animal presumably has large ears ... correction: it's earless | 70 |
| This animal presumably hunts its prey in the jungle ... correction: the ocean | 77 |
| This animal presumably moves about on eight limbs ... correction: four limbs | 76 |
| This animal presumably spends its entire life in a shell ... correction: just the first part of its life | 104 |
| This Anna was Nana | 18 |
| This ans. is one | 16 |
| This ans., e.g. | 15 |
| This answer and others | 22 |
| This answer contains a lot of letters | 37 |
| This answer contains more than nine letters | 43 |
| This answer contains one | 24 |
| This answer has three | 21 |
| This answer has two | 19 |
| This answer intersects it | 25 |
| This answer is a four-letter word | 33 |
| This answer is hard | 19 |
| This answer is one | 18 |
| This answer's place: Abbr. | 30 |
| This answer, e.g. | 17 |
| This answer, for instance | 25 |
| This appears on a horse's neck | 34 |
| This attacks tomatoes and humans | 32 |
| This attracts coverage | 22 |
| This backwards bard is dull? | 28 |
| This bears an image of Monticello | 33 |
| This begets itself, according to Fuller | 39 |
| This bloke may be a toff | 24 |
| This bore may cause excitement | 30 |