FLIT

Secret departure (by moonlight?) (4)

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

• Quick crossword No 16,393 — 2022-11-21 00:00:39
  9A: Dart (by moonlight?) (4)
• Quick crossword No 15,319 — 2019-06-12 23:00:56
  17D: Secret departure (by moonlight?) (4)