*Villain's expression (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">villain's expression</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sneer that I've seen before include "Be derisive; Sheridan's Critic" , "Scoff, scorn" , "Speak contemptuously" , "Speak scornfully" , "Contemptuous expression" .)
(Other definitions for reviling that I've seen before include "Condemning" , "Abusively criticising" .)