DUDE

US geezer (4)

Solution has appeared in 2 crosswords (2 across and 0 down):

• Quick crossword No 15,910 — 2021-05-04 23:00:02
  1A: One much concerned with his appearance (informal) (4)
• Quick crossword No 15,368 — 2019-08-08 23:00:37
  10A: US geezer (4)