UNLESS

Except if (6)

Solution has appeared in 3 crosswords (0 across and 3 down):

• Quick crossword No 16,479 — 2023-03-01 00:00:17
  17D: Except if… (6)
• Quick crossword No 15,540 — 2020-02-27 00:00:32
  17D: Except when (6)
• Quick crossword No 15,267 — 2019-04-12 23:00:03
  16D: Except if (6)