Eyes unpleasantly (5)
I believe the answer is:
ogles
'eyes unpleasantly' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ogles that I've seen before include "Looks at amorously, makes eyes at" , "Casts amorous glances" , "Looks at (someone) lecherously" , "Leers" , "Looks longingly at" .)