Ridiculing (7)
I believe the answer is:
mocking
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ridiculing</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for mocking that I've seen before include "Raillery" , "Scornfully teasing, ridiculing" , "Taunting" , "Sarcastic" .)