Outlawed (6)
I believe the answer is:
banned
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">outlawed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(banning is a kind of outlawing)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for banned that I've seen before include "Group on radio" , "Forbidden by law" , "Outlawed" , "Taboo" , "Censored" .)