| Text | Length |
| Under-the-sink joints | 21 |
| Upstate New York city | 21 |
| Unpredictable current | 21 |
| U.S. Open champ Ernie | 21 |
| Urban-legend spreader | 21 |
| University in Atlanta | 21 |
| User of defib paddles | 21 |
| Uncontrolled outbreak | 21 |
| Unit of geologic time | 21 |
| Unit in history class | 21 |
| Use the backspace key | 21 |
| Use the unleaded part | 21 |
| Up to, to a versifier | 21 |
| Up to this time, once | 21 |
| Uneven, as leaf edges | 21 |
| Unscripted utterances | 21 |
| Upper-left key, often | 21 |
| Upper-left laptop key | 21 |
| Unusual gift of sight | 21 |
| Uncanny talent: Abbr. | 21 |
| Useful info at Dulles | 21 |
| Unnamed others: Abbr. | 21 |
| Use acid artistically | 21 |
| Upper region of space | 21 |
| Upper places in space | 21 |
| Uppity English school | 21 |
| UFO pilots, in theory | 21 |
| Un-PC suffix, to many | 21 |
| Until the end of time | 21 |
| Unit of ocular relief | 21 |
| U.S. airspace monitor | 21 |
| Understand thoroughly | 21 |
| U.S. health protector | 21 |
| U.S. drug safety org. | 21 |
| U.K. black metal band | 21 |
| Upscale handbag maker | 21 |
| Unhealthy temperature | 21 |
| Use an emery board on | 21 |
| Underwater propeller? | 21 |
| United Nations wavers | 21 |
| Untwisted silk fibers | 21 |
| Use a crowbar on, say | 21 |
| Unnatural performance | 21 |
| U. of Ga. group, e.g. | 21 |
| Uneasy (with tension) | 21 |
| Unravels at the edges | 21 |
| Unconventional person | 21 |
| Up day on Wall Street | 21 |
| Units of acceleration | 21 |
| Ugly-faced waterspout | 21 |
| U. of Florida athlete | 21 |
| Unit of magnetic flux | 21 |
| UK nation, in Beijing | 21 |
| Used to color a light | 21 |
| U.S.M.C. V.I.P.'s | 21 |
| U. S. economist Henry | 21 |
| Understand, as a joke | 21 |
| Understands the humor | 21 |
| Understands, as humor | 21 |
| Understands the issue | 21 |
| U.S.O. show attendees | 21 |
| Unit of whipped cream | 21 |
| Unappetizing ladleful | 21 |
| U.F.O. feature, maybe | 21 |
| U. S. output initials | 21 |
| Understood, as a joke | 21 |
| Univ. transcript stat | 21 |
| Uniform color of 1861 | 21 |
| U.S. property manager | 21 |
| U.S. Island territory | 21 |
| Unwilling to say much | 21 |
| Unlikely Tony winners | 21 |
| Use one of the senses | 21 |
| Usually black vehicle | 21 |
| U.S. editor-publisher | 21 |
| Unbearable experience | 21 |
| Up on things, daddy-o | 21 |
| Usher in with fanfare | 21 |
| Umbrette's cousin | 21 |
| Uttar Pradesh denizen | 21 |
| Unexpected difficulty | 21 |
| Unicorn feature, e.g. | 21 |
| Unicorn's feature | 21 |
| Unicorn feature e.g. | 21 |
| Usual TV drama length | 21 |
| Uncle Tom's cabin | 21 |
| U.S. military chopper | 21 |
| Use hard-sell tactics | 21 |
| Uncontrolled outburst | 21 |
| U.S. regulatory board | 21 |
| U.S. regulatory agcy. | 21 |
| U. S. regulatory org. | 21 |
| User-friendly picture | 21 |
| U.S. state since 1890 | 21 |
| Uganda's ___ Amin | 21 |
| Ugandan dictator Amin | 21 |
| Union-starting phrase | 21 |
| Unpredictable factors | 21 |
| Unenthusiastic assent | 21 |
| Uncertain concurrence | 21 |
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