IRRITANT

It's annoying (8)

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

• Quick crossword No 16,073 — 2021-11-11 00:00:18
  10A: Pain in the neck (8)
• Quick crossword No 15,895 — 2021-04-16 23:00:17
  10D: It's annoying (8)