Curled-lip look (5)
I believe the answer is:
sneer
'curled-lip look' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sneer that I've seen before include "Dig" , "Taunt" , "Deride, jeer" , "A scornful expression or remark" , "Contemptuous remark" .)