Love helping after fuss (9)
I believe the answer is:
adoration
'love' is the definition.
(to adore someone is to love them)
'helping after fuss' is the wordplay.
'helping' becomes 'ration' (a ration is a serving or helping).
'after' says to put letters next to each other.
'fuss' becomes 'ado' (synonyms).
'ration' put after 'ado' is 'ADORATION'.
(Other definitions for adoration that I've seen before include "holding someone up a lot" , "high esteem" , "enormous respect" , "praise" , "Honour" .)