LOUDMOUTH

One who talks in an offensive way (9)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 15,700 — 2020-08-31 23:00:19
  3D: Braggart (9)
• Quick crossword No 15,264 — 2019-04-09 23:00:37
  12A: One who talks in an offensive way (9)