A large number (4)
(Other definitions for host that I've seen before include "Crowd-entertainer" , "One entertaining, large number" , "Pub landlord" , "Entertainer of guests" , "Party-giver" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a large number</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for many that I've seen before include "Multitudinous" , "multitude" , "A great number" , "Several" , "Lots" .)