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