MULES

Hybrid beasts of burden (5)

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

• Quick crossword No 16,672 — 2023-10-11 23:00:52
  20A: Footwear — people who smuggle drugs (5)
• Quick crossword No 15,755 — 2020-11-04 00:00:02
  22A: Hybrid beasts of burden (5)