RATATAT

Rapping sound (3-1-3)

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

• Quick crossword No 15,939 — 2021-06-07 23:00:04
  21A: Short sharp knocks on a door (3-1-3)
• Quick crossword No 15,342 — 2019-07-09 23:00:08
  10A: Rapping sound (3-1-3)