Answer: autographhound

AnswerCrossword Clue
AUTOGRAPHHOUNDOne with many names?
AUTOGRAPHHOUNDTheater exit waiter, perhaps
AUTOGRAPHHOUNDStar signature seeker
AUTOGRAPHHOUNDSolicitor of celebs' signatures
AUTOGRAPHHOUNDOne on a star search?