Crossword Genius

Many a univ. donor (4)

Ross

I believe the answer is:

alum

(Other definitions for alum that I've seen before include "White mineral salt used in medicine and in dyeing" , "Potassium compound; IoW sandy bay" , "Compound used in tanning and dying" , "double sulphate" , "Name given to a specific chemical compound and a class of them" .)

I've seen this clue in the Universal, the USA Today and the LA Times.
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.