CALLUS

Area of skin hardened by friction (6)

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

• Quick crossword No 15,875 — 2021-03-25 00:00:12
  14A: Area of hard skin (6)
• Quick crossword No 15,686 — 2020-08-14 23:00:26
  5D: Area of skin hardened by friction (6)