Look like a wolf? (4)
I believe the answer is:
leer
'look like a wolf?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for leer that I've seen before include "Lascivious gaze" , "Suggestive or sneering grin" , "Look lasciviously at" , "Suggestive or sneering look" , "Give lascivious look" .)