HOBBYHORSE

Once popular child's toy — favourite topic (5,5)

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

• Quick crossword No 15,474 — 2019-12-11 00:00:22
  10D: Toy — preoccupation (5,5)
• Quick crossword No 15,241 — 2019-03-14 00:00:24
  1A: Once popular child's toy — favourite topic (5,5)