Look at rudely (4)
I believe the answer is:
ogle
'look at rudely' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ogle that I've seen before include "Cast flirtatious glance at" , "Eye up lasciviously" , "Gaze at lecherously" , "Regard lecherously" , "Stare at in a lecherous manner" .)