DELUSION

Erroneous belief (8)

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

• Quick crossword No 16,230 — 2022-05-13 23:00:45
  13D: Unsoiled (anag) — false idea (8)
• Quick crossword No 15,189 — 2019-01-12 00:00:24
  7D: Erroneous belief (8)