Joined female taken advantage of (5)
I believe the answer is:
fused
'joined' is the definition.
(thesaurus)
'female taken advantage of' is the wordplay.
'female' becomes 'f' (abbreviation).
'taken advantage of' becomes 'used' (I've seen this before).
'f'+'used'='FUSED'
(Other definitions for fused that I've seen before include "Melted together" , "Combined" , "Coalesced" , "United" , "in one piece" .)