PROM

Classical music concert for which part of the audience stands (4)

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

• Quick crossword No 15,969 — 2021-07-12 23:00:27
  20D: American high school dance (4)
• Quick crossword No 15,306 — 2019-05-28 23:00:24
  3D: Classical music concert for which part of the audience stands (4)