Brewing fungi (6)

I believe the answer is:

yeasts

(Other definitions for yeasts that I've seen before include "Leavening agents" , "Raising agents, sayest thou?" , "Stuff for baker" , "Raising agents in baking" .)

I've seen this clue in the King Feature Syndicate.

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.