Tease scornfully (4)
I believe the answer is:
mock
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tease scornfully</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for mock that I've seen before include "Taunt" , "Jeer, deride" , "Unreal; ridicule" , "Tease or laugh at" , "Scoff at" .)