BASSO

Lowest male singing voice (sometimes 'profundo') (5)

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

• Quick crossword No 16,569 — 2023-06-13 23:00:11
  19D: ___ profundo, lowest adult male singing voice (5)
• Quick crossword No 15,390 — 2019-09-03 23:00:06
  22A: Lowest male singing voice (sometimes 'profundo') (5)