Fuss about love (5)
I believe the answer is:
adore
'love' is the definition.
(adoring is a kind of loving)
'fuss about' is the wordplay.
'fuss' becomes 'ado' (synonyms).
'about' becomes 're' ('re' means regarding or about).
'ado'+'re'='ADORE'
(Other definitions for adore that I've seen before include "Like a lot" , "Love, revere intensely" , "Treasure" , "Cherish" , "Worship and glorify" .)