Womaniser harbouring love for female author (5)
I believe the answer is:
woolf
'female author' is the definition.
(Woolf matches up with the definition female author)
'womaniser harbouring love' is the wordplay.
'womaniser' becomes 'wolf' (wolf is a kind of womaniser).
'harbouring' indicates putting letters inside.
'love' becomes 'o' (love means zero in tennis).
'wolf' going around 'o' is 'WOOLF'.
'for' is the link.
(Other definitions for woolf that I've seen before include "Author of To the Lighthouse" , "Virginia -, Eng. writer" , "Virginia - - wrote 'Orlando'" , "Novelist" , "Political writer" .)