Speak out against (8)
I believe the answer is:
denounce
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">speak out against</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for denounce that I've seen before include "Accuse publicly" , "None cued (anag.)" , "Speak publicly against, censure" , "Speak violently against" , "Speak publicly against, having cue with no end" .)