Female to kiss nag (7)
I believe the answer is:
henpeck
'nag' is the definition.
(I've seen this before)
'female to kiss' is the wordplay.
'female' becomes 'hen' (female chicken).
'to kiss' becomes 'peck' (pecking is a kind of kissing).
'hen'+'peck'='HENPECK'
(Other definitions for henpeck that I've seen before include "Nag a husband" , "Nag as domestic fowl might" , "Nag like domineering wife or farmyard fowl" , "(Of a woman) continually criticise (a husband)" , "Harass (husband)" .)