Presiding officers (8)
I believe the answer is:
chairmen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">presiding officers</span>' is the definition.<br/ ><span class="explanation-format__explanation">(chairman is a kind of presiding officer)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for chairmen that I've seen before include "Meeting heads" , "Meeting leaders" .)