Presiding officer (9)
I believe the answer is:
moderator
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">presiding officer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for moderator that I've seen before include "One checking discussions conducted fairly" , "clerical figure" , "Presbyterian minister - superintendent of university examinations" , "Site foreman" , "Someone who presides over a forum or debate" .)