One expecting an RSVP (4)

I believe the answer is:

host

'one expecting an rsvp' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for host that I've seen before include "Pub landlord" , "Entertainer of guests" , "This man entertains" , "One receiving guests" , "Master of ceremonies" .)

I've seen this clue in the Universal and the LA Times.

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