Contort the face (7)
I believe the answer is:
grimace
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">contort the face</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for grimace that I've seen before include "Wry look" , "Facial contortion expressive of pain or disgust" , "Contortion of face expressing pain" , "Smirk" , "Distorted facial expression" .)