RUNT

Smallest piglet of a litter (4)

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

• Quick crossword No 16,010 — 2021-08-29 23:00:18
  21A: Weakest in the litter (4)
• Quick crossword No 15,518 — 2020-02-01 00:00:03
  18A: Smallest piglet of a litter (4)