BEAVER

Semi-aquatic rodent — work hard (6)

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

• Quick crossword No 16,328 — 2022-09-05 23:00:41
  10A: Dam-building animal (6)
• Quick crossword No 15,692 — 2020-08-21 23:00:10
  16D: Semi-aquatic rodent — work hard (6)