Ogling (7)
I believe the answer is:
leering
'ogling' is the definition.
(leer can mean to ogle or stare at)
This is the entire clue.
(Other definitions for leering that I've seen before include "giving the glad eye" , "Ogling" , "Gazing lasciviously" , "Looking suggestively" , "appearing lascivious" .)