POSER

Particularly baffling problem (5)

Solution has appeared in 4 crosswords (2 across and 2 down):

• Quick crossword No 16,578 — 2023-06-23 23:00:51
  8A: Artist's model? (5)
• Quick crossword No 16,330 — 2022-09-07 23:00:00
  4D: Difficult question (5)
• Quick crossword No 15,655 — 2020-07-09 23:00:00
  17D: Show-off (5)
• Quick crossword No 15,579 — 2020-04-12 23:00:56
  18A: Particularly baffling problem (5)