Woman's garment wants belt (4)
I believe the answer is:
anna
This could be a double definition.
'woman's' is the first definition.
'garment wants belt' is the second definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
(Other definitions for anna that I've seen before include "- - and the King of 22" , "Palindromic girl's name" , "-- Karenina, Tolstoy novel" , "___ Pavlova, Russian dancer, d. 1931" , "Girl's name (palindrome)" .)