Abuse, disparage (6)
I believe the answer is:
vilify
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">abuse</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that vilify is a more specific form of the action abuse)</span><br/ ><br/ >'<span class="explanation-format__original">disparage</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for vilify that I've seen before include "Abusively disparage" , "Abuse - defame" , "Spread negative information about" , "rubbish" , "Malign or defame" .)