He deserves woman's love (4)
I believe the answer is:
hero
'he deserves' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'woman's love' is the wordplay.
'woman' becomes 'her' (**).
'love' becomes 'o' (In tennis, 'love' means 'zero').
'her'+'o'='HERO'
(Other definitions for hero that I've seen before include "Principal male character in a play, movie, novel or poem" , "Brave guy" , "paragon" , "Man of valour" , "Very brave man" .)