Reverses (6)
I believe the answer is:
'reverses' is the definition.
(undoing is a kind of reversing)
This is the entire clue.
(Other definitions for undoes that I've seen before include "Loosens or ruins" , "Opens fastener or causes the ruin of" .)
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.