Emcee (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">emcee</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for host that I've seen before include "put on" , "Multitude -- MC" , "Party-giver" , "Provide entertainment" , "This man entertains" .)