KNEESUP

Lively informal party (5-2)

Solution has appeared in 3 crosswords (1 across and 2 down):

• Quick crossword No 16,319 — 2022-08-25 23:00:16
  13D: Large noisy party (informal) (5-2)
• Quick crossword No 15,615 — 2020-05-24 23:00:35
  22A: Informal shindig (with Mother Brown?) (5-2)
• Quick crossword No 15,300 — 2019-05-21 23:00:15
  13D: Lively informal party (5-2)