BUFFALO

Animal whose milk made mozzarella initially (7)

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

• Quick crossword No 15,792 — 2020-12-17 00:00:23
  10A: Wild ox in the US (7)
• Quick crossword No 15,638 — 2020-06-19 23:00:30
  5D: Animal whose milk made mozzarella initially (7)