Needleworker cut up curtains for alteration (13)
I believe the answer is:
acupuncturist
'alteration' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see an association between them that I don't see?
'needleworker cut up curtains' is the wordplay.
'cut up curtains' can be anagrammed to 'ACUPUNCTURIST'.
However, I am not sure how the anagram is indicated.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for acupuncturist that I've seen before include "Cut up curtains (anag) - complementary therapist" , "Needle therapist" .)