Bad look coming from someone vile, yes? (4,3)
I believe the answer is:
evil eye
'bad look' is the definition.
(I've seen this in another clue)
'coming from someone vile yes?' is the wordplay.
'coming from' indicates a hidden word.
'EVIL EYE' can be found hidden inside 'someone vile yes'.
(Other definitions for evil eye that I've seen before include "Look that inflicts harm" , "Hex look" , "Look with the power to inflict harm" , "Malevolent look" , "Indian sign?" .)