HEYDAY

Prime of life (6)

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

• Quick crossword No 16,065 — 2021-11-02 00:00:00
  7D: Period of one's greatest productivity (6)
• Quick crossword No 15,527 — 2020-02-12 00:00:17
  14A: Prime of life (6)