Grip enhancer at the gym (5)

I believe the answer is:

chalk

(Other definitions for chalk that I've seen before include "Substance totally different from cheese!" , "Soft white rock used for writing on boards etc" , "Opposite of cheese?" , "Soft white limestone (as distinct from cheese)" , "Calcium carbonate" .)

I've seen this clue in the Universal.

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.