Crossword Genius

Zest source (5,4)

Ross

I believe the answer is:

lemon peel

'zest source' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for lemon peel that I've seen before include "Source of zest" , "twist" .)

I've seen this clue in The Sunday 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.