Loving a party call (7)
I believe the answer is:
adoring
'loving' is the definition.
(adore means to love or be very fond of)
'a party call' is the wordplay.
'party' becomes 'do' (do is a kind of party).
'call' becomes 'ring' (telephone call).
'a'+'do'+'ring'='ADORING'
(Other definitions for adoring that I've seen before include "Worshipping; admiring" , "Passionate" , "Worshipping the loved one" , "Loving deeply" , "Very keen on" .)