| Text | Length |
| Use radar, perhaps | 18 |
| Unfinished details | 18 |
| Unfortunate fellow | 18 |
| Unsuccessful types | 18 |
| Unfavorable result | 18 |
| Utterly bewildered | 18 |
| Used car trailers? | 18 |
| Up to eleven, say? | 18 |
| Unsavory character | 18 |
| Unlikely to defect | 18 |
| Unlikely to snitch | 18 |
| Underworld society | 18 |
| U.S. Olympic skier | 18 |
| Uses a certain box | 18 |
| Ubiquitous Stewart | 18 |
| Unrevealing attire | 18 |
| Upper mgmt. degree | 18 |
| U. S. labor leader | 18 |
| Unit on an FM dial | 18 |
| Underwhelmed grunt | 18 |
| Unit of tone pitch | 18 |
| Uses a darning egg | 18 |
| Unwritten reminder | 18 |
| U.S. coin, 1916-45 | 18 |
| Unwieldy situation | 18 |
| University of Ohio | 18 |
| Units of thickness | 18 |
| Underground figure | 18 |
| Univ. near Harvard | 18 |
| Uninvited burrower | 18 |
| Underground mammal | 18 |
| Union title, often | 18 |
| U.S. time division | 18 |
| Urban transit org. | 18 |
| Undrinkable coffee | 18 |
| Unstable particles | 18 |
| Undergo alteration | 18 |
| Urban legend, e.g. | 18 |
| USA/Mex./Can. pact | 18 |
| Unlikely favorites | 18 |
| Uto-Aztecan tongue | 18 |
| Unaided perception | 18 |
| User's accuser | 18 |
| User's pursuer | 18 |
| Users' nemeses | 18 |
| U.S. flight agency | 18 |
| Unforgettable Cole | 18 |
| Uncas's friend | 18 |
| Umbilical terminus | 18 |
| Unsupportive words | 18 |
| Univ. sports group | 18 |
| U.S.A.F. E-7, e.g. | 18 |
| Unmixed at a mixer | 18 |
| Unbeatable scourge | 18 |
| Up-to-date: Prefix | 18 |
| Unreactive element | 18 |
| Urban illumination | 18 |
| Unlikely prom king | 18 |
| Unpopular, perhaps | 18 |
| Untouchable leader | 18 |
| Untouchable lawman | 18 |
| Untouchables chief | 18 |
| Uncharged particle | 18 |
| Unchanged particle | 18 |
| Unexpected tidings | 18 |
| Unlikely to offend | 18 |
| Unc's daughter | 18 |
| U.S. wellness org. | 18 |
| U.S. research org. | 18 |
| Unimpressive score | 18 |
| U.S.-born Japanese | 18 |
| Unless, in decrees | 18 |
| Unless, to lawyers | 18 |
| Unstable explosive | 18 |
| U. S. union agency | 18 |
| Uptown dir. in NYC | 18 |
| Unimportant person | 18 |
| Unspoken agreement | 18 |
| Up-and-down motion | 18 |
| Under Fire star | 18 |
| Unelite, in London | 18 |
| Unexpected skipper | 18 |
| Univ. grant source | 18 |
| Unspecified degree | 18 |
| Ultimate, in a way | 18 |
| Ultimate in degree | 18 |
| Use a microwave on | 18 |
| Uses an icepack on | 18 |
| Unpredictable sort | 18 |
| Unhinged, in a way | 18 |
| USS Arizona locale | 18 |
| Unpleasingly plump | 18 |
| Unpleasantly plump | 18 |
| Unlimited quantity | 18 |
| Uneven, as numbers | 18 |
| U.K. reference bk. | 18 |
| US air travel axis | 18 |
| Unit of resistance | 18 |
| Use 3-IN-ONE, e.g. | 18 |
| Upscale hotel name | 18 |
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