Woman's harbouring love for footwear (4)
I believe the answer is:
shoe
'footwear' is the definition.
(shoe is a kind of footwear)
'woman's harbouring love' is the wordplay.
'woman' becomes 'she' (**).
'harbouring' means one lot of letters goes inside another.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'she' going around 'o' is 'SHOE'.
'for' is the link.
(Other definitions for shoe that I've seen before include "What's worn" , "Plate nailed to underside of horse's hoof" , "Oxford, say" , "Box for holding and dispensing from pack of cards" , "One of the things racehorse needs" .)