| Unwitting accomplice |
20 |
| U.S. asbestos regulator |
23 |
| Uncooperative, like a mule |
26 |
| Uncanny |
7 |
| Unhappy and loud spectator |
26 |
| Uses one's tongue on a lollipop |
31 |
| US "mafia |
9 |
| Uncultured one |
14 |
| Underhanded plan |
16 |
| UNRELIABLE RELATIONSHIP |
23 |
| Uneasy feeling |
14 |
| U.S. city whose name looks oxymoronic |
37 |
| Up-to-date, ... of developments |
31 |
| Used a kayak |
12 |
| Unsightly citrus fruit? |
23 |
| Units of chains x furlongs |
26 |
| Uraeus |
6 |
| Unreliable witness, e.g. |
24 |
| Unruly horse |
12 |
| Understand intuitively |
22 |
| Ungodly noise |
13 |
| U.S.A.F. weapon |
15 |
| Unoriginal ones |
15 |
| Ugandan exile Amin |
18 |
| Use one's peepers |
17 |
| Unwell |
6 |
| Unspoken agreements? |
20 |
| Unreliable communication method (h) |
35 |
| Used a long-handled tool in a garden |
36 |
| Unkind, cruel |
13 |
| Unmerciful Athenian lawgiver |
28 |
| Unimpaired by the passage of time. |
34 |
| Unbiased hirer, in ads |
22 |
| Up in the morning |
17 |
| Unmanned, unsettling military flier |
35 |
| U.N. Messenger of Peace appointee in 1998 |
41 |
| USCG bigwigs |
12 |
| Unfulfilled potential? |
22 |
| U.S. presidential campaigner's audience |
39 |
| Unreliable witnesses |
20 |
| Unopened tulip |
14 |
| Uncool |
6 |
| Unhappy fan's shout |
19 |
| Undeclared earnings? |
20 |
| Unruly youngster |
16 |
| Ukrainian trading center |
24 |
| Uncovered, as floors |
20 |
| Undergarment with spaghetti straps, briefly |
43 |
| Unwrapped" host Summers |
23 |
| Undemanding course |
18 |
| U-2 overseers |
13 |
| Uncovered wagon |
15 |
| Uncouth fellows |
15 |
| Up-to-date: Prefix |
18 |
| Uncool dude |
11 |
| Umpire quartets |
15 |
| Undertake, as responsibilities |
30 |
| Unevenly balanced |
17 |
| Unrestrainedly |
14 |
| Use a yardstick |
15 |
| Unmitigated ___ (brazenness) |
28 |
| Uncovered the most |
18 |
| Uncool types |
12 |
| Underworld language |
19 |
| Undesirably rapid hardening of concrete |
39 |
| Use thread on threads, say |
26 |
| Underwent development |
21 |
| Unexpectedly |
12 |
| Utterance accompanying a head slap |
34 |
| Unpolished |
10 |
| Undergrad's bugbear |
19 |
| Unimportant workers |
19 |
| Un-biased Lincoln supporter? |
28 |
| Unemployed renter? |
18 |
| Ushers' beat |
12 |
| Unsoiled |
8 |
| U.S. inventor |
13 |
| Unoriginal one |
14 |
| Use as a resource |
17 |
| U.S. flyers in WWII |
19 |
| Uncooperative |
13 |
| Utter chaos |
11 |
| Unaltered |
9 |
| Unpretentious one |
17 |
| Uncool Eskimo? |
14 |
| Unspecified person |
18 |
| Under-the-bed figment, hopefully |
32 |
| Uncastrated stallions (no, really) |
34 |
| Unacceptable behaviour |
22 |
| Upbraid mendacity |
17 |
| Using one's passport, perhaps |
29 |
| University officials |
20 |
| Upper-left key on a PC |
22 |
| Understand or be punished |
25 |
| Ultra-modernist |
15 |
| Urgent prompting |
16 |
| Updates electrically |
20 |
| Using indirect references |
25 |
| Use a scythe |
12 |
| Urn outpouring |
14 |