| Text | Length |
| Usually unopened mail | 21 |
| Unwanted in-box stuff | 21 |
| Unpopular bulk mailer | 21 |
| Uncontrollable twitch | 21 |
| Uttered with contempt | 21 |
| UV protection numbers | 21 |
| Unmarried women, once | 21 |
| Unrestrained outburst | 21 |
| Upper-classmen: Abbr. | 21 |
| Unmarried lady of Sp. | 21 |
| U.S. Marine Corps E-6 | 21 |
| Ukraine, once (Abbr.) | 21 |
| Uzbek, for one: Abbr. | 21 |
| Ukr., e.g. , formerly | 21 |
| Ultrafast plane, once | 21 |
| Unlikely to fall over | 21 |
| Unlike nobelium, e.g. | 21 |
| Unsustained, in music | 21 |
| Up-and-coming actress | 21 |
| Unmoving machine part | 21 |
| USA's oldest city | 21 |
| Unlikely to flip over | 21 |
| Unbelievable bargains | 21 |
| Upstage a bride, e.g. | 21 |
| Unpleasant attachment | 21 |
| Undercover enterprise | 21 |
| Undercover operations | 21 |
| Use a spoon, in a way | 21 |
| Uses a spoon, perhaps | 21 |
| Unaffected by passion | 21 |
| Used delaying tactics | 21 |
| Unexplained phenomena | 21 |
| Utilize the boardwalk | 21 |
| Urban gridwork: Abbr. | 21 |
| Upright, in the house | 21 |
| Unsightly eye problem | 21 |
| Unspoken, but thought | 21 |
| Unneeded extra amount | 21 |
| Use, as a credit card | 21 |
| Utilize a charge card | 21 |
| Under oath at a trial | 21 |
| Undine's relative | 21 |
| Unsaid but understood | 21 |
| Unspoken, but implied | 21 |
| Unspoken, as approval | 21 |
| Ute Peak's county | 21 |
| Unwanted oral buildup | 21 |
| Univ. proctors, often | 21 |
| U.S.S.R. press agency | 21 |
| U.S.S.R. news service | 21 |
| Uses a sewing shuttle | 21 |
| Union general William | 21 |
| U.N. donor ___ Turner | 21 |
| Usual number of paces | 21 |
| Unwelcome house guest | 21 |
| U. of Maryland player | 21 |
| U.S. Virgin Is., e.g. | 21 |
| Using precise wording | 21 |
| Up in ___ (unsettled) | 21 |
| Us, according to Pogo | 21 |
| Unkind kind of degree | 21 |
| Using fiscal prudence | 21 |
| Uprising site of 1989 | 21 |
| U-boat's attacker | 21 |
| U. S. satellite, 1960 | 21 |
| UFC result, sometimes | 21 |
| U.S. Treasury sleuths | 21 |
| Unable to stay on key | 21 |
| Uncle of Sterne novel | 21 |
| Underground purchases | 21 |
| Unable to sense pitch | 21 |
| Unable to hit a pitch | 21 |
| Up ___ (feeling well) | 21 |
| Underwater projectile | 21 |
| Use thumbscrews, e.g. | 21 |
| Urban congestion: pl. | 21 |
| Underground transport | 21 |
| Upper half, musically | 21 |
| Unlikely trick takers | 21 |
| Ultimate rally-killer | 21 |
| Uses a revolving lure | 21 |
| Use the dressing room | 21 |
| Unusual brass polish? | 21 |
| Upholstery adornments | 21 |
| U.S. petroleum center | 21 |
| Uncovers, as evidence | 21 |
| U.S. agcy. since 1933 | 21 |
| U. S. project of 1933 | 21 |
| US Airways competitor | 21 |
| Unexpected plot piece | 21 |
| Unexpected deed part? | 21 |
| Use a keyboard, maybe | 21 |
| Ultracompetitive sort | 21 |
| Ulan-___, Soviet city | 21 |
| Unexplained sightings | 21 |
| Utterances of disgust | 21 |
| United Kingdom symbol | 21 |
| Untie, as a restraint | 21 |
| Use Liquid-Plumr, say | 21 |
| Up to, but not beyond | 21 |
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