Grab a girl for a kiss (5)
I believe the answer is:
annex
'grab' is the definition.
(I've seen this before)
'a girl for a kiss' is the wordplay.
'a girl' becomes 'anne' (girl's name).
'for' is a charade indicator (letters next to each other).
'a kiss' becomes 'x' (X can represent a kiss).
'anne'+'x'='ANNEX'
(Other definitions for annex that I've seen before include "Add to one's territory" , "Addition to a document" , "Attach after conquest" , "Attach(ment)" , "Attach, invade" .)