Version singer Piaf won't finish? (4)
I believe the answer is:
edit
'version singer piaf won't finish?' is the definition.
I can't judge whether this definition defines the answer.
'singer piaf won't finish?' is the wordplay.
'singer piaf' becomes 'edith' (I've seen this in another clue).
'won't finish?' means to remove the last letter.
'edith' with its last letter taken off is 'EDIT'.
Can you help me to learn more?
(Other definitions for edit that I've seen before include "Prepare text for publication" , "What our boss does" , "Emend" , "Supervise the publication of" , "Be in charge of (newspaper)" .)