MASSIF

Compact group of mountains (6)

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

• Quick crossword No 16,000 — 2021-08-17 23:00:37
  17A: Block of Earth's crust lifted to form peaks of a mountain range (6)
• Quick crossword No 15,741 — 2020-10-18 23:00:02
  6D: Compact group of mountains (6)