HEAP

Unreliable old car (4)

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

• Quick crossword No 15,585 — 2020-04-19 23:00:51
  5A: Pile (4)
• Quick crossword No 15,349 — 2019-07-17 23:00:08
  19A: Unreliable old car (4)