Demur (7)
I believe the answer is:
protest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">demur</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for protest that I've seen before include "Express dissent" , "Demurral" , "Express opposition" , "Object loudly" , "Statement or action showing disapproval" .)