Crossword Genius

Leavening agent (5)

Ross

I believe the answer is:

yeast

'leavening agent' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for yeast that I've seen before include "that baker needs" , "fermenter" , "A raising agent in baking" , "Fungus used to ferment sugar" , "Baker's ingredient" .)

I've seen this clue in the Universal, The Telegraph and The Independent.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.