Invitee (5)
I believe the answer is:
guest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">invitee</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for guest that I've seen before include "See 2" , "Invitee" , "company" , "Person entertained by host" , "Person receiving another's hospitality" .)