Trouble with part for love (9)
I believe the answer is:
adoration
'love' is the definition.
(thesaurus)
'trouble with part' is the wordplay.
'trouble' becomes 'ado' (I've seen this before).
'with' is a charade indicator (letters next to each other).
'part' becomes 'ration' (ration is a kind of part**).
'ado'+'ration'='ADORATION'
'for' acts as a link.
(Other definitions for adoration that I've seen before include "enormous respect" , "Worship, veneration" , "high esteem" , "Great affection" , "Feeling of profound love" .)