Family of lover no longer having grip (10)
I believe the answer is:
extraction
'family' is the definition.
(thesaurus)
'lover no longer having grip' is the wordplay.
'lover no longer' becomes 'ex' (ex-lover).
'having' means one lot of letters go next to another.
'grip' becomes 'traction' (synonyms).
'ex'+'traction'='EXTRACTION'
'of' is the link.
(Other definitions for extraction that I've seen before include "drawing" , "Descent" , "Ethnic origin" , "Removal; lineage" , "one suffers with mouth open?" .)