Repeatedly sick over women, creating resentment (3,4)
I believe the answer is:
ill will
'resentment' is the definition.
(thesaurus)
'repeatedly sick over women' is the wordplay.
'repeatedly' shows that letters should be duplicated.
'sick' becomes 'ill' ('ill' can be a synonym of 'sick').
'over' is an insertion indicator.
'women' becomes 'w'.
'ill' duplicated is 'illill'.
'illill' enclosing 'w' is 'ILL-WILL'.
'creating' acts as a link.
(Other definitions for ill will that I've seen before include "Malice - unfriendliness" , "causing resentment" , "Hostile and unkind feeling" , "Hostility, unkind feeling" , "Bitterness" .)