BRAT

Badly behaved child (4)

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

• Quick crossword No 15,673 — 2020-07-30 23:00:57
  19A: Unpleasant child (4)
• Quick crossword No 15,393 — 2019-09-06 23:00:52
  19A: Badly behaved child (4)