| University of Massachusetts | 27 |
| Union in Detroit, initially | 27 |
| Ulan-___ (Siberian capital) | 27 |
| Unusual sighting, for short | 27 |
| Uncertain sighting, briefly | 27 |
| Uncertain sighting briefly | 27 |
| Unaccounted-for radar blips | 27 |
| Unattractive Jamaican fruit | 27 |
| Unattractive tropical fruit | 27 |
| Unattractive, and then some | 27 |
| Unemployment Insurance org. | 27 |
| Unnavigable river of Russia | 27 |
| University of Illinois site | 27 |
| University of Illinois city | 27 |
| Upholsterer's inventory | 27 |
| Use of everyday life in art | 27 |
| Upper ___, African republic | 27 |
| Unclaimed piece of property | 27 |
| Upstanding Chinese feature? | 27 |
| U.S. chief justice, 1953-69 | 27 |
| Unsightly in a certain way | 27 |
| Use a blowtorch on, perhaps | 27 |
| Useful app for a smartphone | 27 |
| User-edited reference entry | 27 |
| Undercover agent's wear | 27 |
| Unwelcome sight on an apple | 27 |
| Uptight motion of the hands | 27 |
| Unsolved cases, in TV lingo | 27 |
| Uppermost number, sometimes | 27 |
| Unlucky "numerus" | 27 |
| Use one's outside voice | 27 |
| Umpteen, with "a" | 27 |
| U.S. president, 1861 to 1865 | 28 |
| Up with, with "of" | 28 |
| Unit equaling 43,560 sq. ft. | 28 |
| Underway, to Sherlock Holmes | 28 |
| Unobtrusive attention getter | 28 |
| Unhealthy-sounding beverage? | 28 |
| Unwanted aquarium collection | 28 |
| U2 "___ of Harlem" | 28 |
| Used in cookery and medicine | 28 |
| Uncredited credit, in quotes | 28 |
| Units in a high rise (Abbr.) | 28 |
| Unmitigated military leader? | 28 |
| Undesirable part of a record | 28 |
| Urgent letters from the boss | 28 |
| U.S. Open tennis champ: 1968 | 28 |
| Unlike the life of the party | 28 |
| U.S. diplomat W. __ Harriman | 28 |
| Unlikely to be talked out of | 28 |
| Unfinished software releases | 28 |
| Upper arm muscle, informally | 28 |
| Unthinking, superficial sort | 28 |
| Uses a paper towel, in a way | 28 |
| Univ. class president, maybe | 28 |
| Uncommon blood type, briefly | 28 |
| Uncomfortably tight wrapper? | 28 |
| Underling of Fearless Leader | 28 |
| Uncle Remus's ___ Rabbit | 28 |
| Unwanted china shop visitor? | 28 |
| Units of 0's and 1's | 28 |
| Unit of professional conduct | 28 |
| Uppercase letters, for short | 28 |
| Unit equal to 200 milligrams | 28 |
| Unit equaling 200 milligrams | 28 |
| Unit in una zona residencial | 28 |
| Use the maxilla and mandible | 28 |
| Ulysses S. Grant's horse | 28 |
| Unarmed, to a police officer | 28 |
| Unsuitable for mixed company | 28 |
| Unlike Mount Holyoke College | 28 |
| Unlikely way to land a buyer | 28 |
| University in Hamilton, N.Y. | 28 |
| Use it to prevent running on | 28 |
| Unit in a multiunit building | 28 |
| Use a wet napkin on, perhaps | 28 |
| Unpleasantly moist and humid | 28 |
| U2 song and Bob Dylan album? | 28 |
| Unmerciful Athenian lawgiver | 28 |
| Uplifting sight for boaters? | 28 |
| Unearth, with "up" | 28 |
| Urbanite's vacation spot | 28 |
| Unchallenging college course | 28 |
| Utter an identical sentiment | 28 |
| Used a weed whacker, perhaps | 28 |
| Unconventionally provocative | 28 |
| University address concluder | 28 |
| Unagi, at a sushi restaurant | 28 |
| Underwater current generator | 28 |
| Unagi, in a sushi restaurant | 28 |
| Un : France :: ___ : Germany | 28 |
| University in North Carolina | 28 |
| University of North Carolina | 28 |
| Upset a stage coach, perhaps | 28 |
| U.S.N. junior officer: Abbr. | 28 |
| Uniform's shoulder piece | 28 |
| Unratified proposal, briefly | 28 |
| Unlocked, as a computer file | 28 |
| Use the pink end of a pencil | 28 |
| U.S. Brig Niagara's port | 28 |