YEAST

Leavening agent (5)

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

• Quick crossword No 15,523 — 2020-02-07 00:00:53
  18D: Fungus able to convert sugar into alcohol (5)
• Quick crossword No 15,205 — 2019-01-31 00:00:06
  1D: Leavening agent (5)