VELCRO

Fastener — clover (anag) (6)

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

• Quick crossword No 16,248 — 2022-06-03 23:00:20
  15A: Nylon fabric used as a fastening (6)
• Quick crossword No 15,856 — 2021-03-03 00:00:02
  8D: Fastener — clover (anag) (6)