BALALAIKA

Three-stringed instrument used to play Russian folk music (9)

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

• Quick crossword No 16,010 — 2021-08-29 23:00:18
  1A: Triangular Russian instrument (9)
• Quick crossword No 15,266 — 2019-04-11 23:00:36
  5A: Three-stringed instrument used to play Russian folk music (9)