IMPAIR

Make less effective (6)

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

• Quick crossword No 15,930 — 2021-05-27 23:00:40
  4A: Spoil (6)
• Quick crossword No 15,382 — 2019-08-25 23:00:23
  17D: Make less effective (6)