Loving song and dance fronting band (7)
I believe the answer is:
adoring
'loving' is the definition.
(adore means to love or be very fond of)
'song and dance fronting band' is the wordplay.
'song and dance' becomes 'ado' (both can mean a fuss or commotion).
'fronting' means one lot of letters go next to another.
'band' becomes 'ring' (a ring is a band of metal).
'ado'+'ring'='ADORING'
(Other definitions for adoring that I've seen before include "Worshipping; admiring" , "Really getting into" , "Greatly loving" , "Passionate" , "Worshipping the loved one" .)