MIRAGE

Hallucination caused by hot air (6)

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

• Quick crossword No 16,074 — 2021-11-12 00:00:20
  1D: Illusion (6)
• Quick crossword No 15,374 — 2019-08-15 23:00:57
  15A: Hallucination caused by hot air (6)