Eve's undoing (5)
I believe the answer is:
apple
'eve's undoing' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for apple that I've seen before include "Cooker possibly" , "Fruit of the rose family" , "Pink Lady, for example" , "Pomaceous fruit" , "One a day keeps the doctor away" .)