Answer: imposer

AnswerCrossword Clue
IMPOSERUnwanted guest, probably
IMPOSERUnwanted guest, say
IMPOSERDrop-in visitor, maybe
IMPOSERIntrusive one
IMPOSERObtruder.
IMPOSERToo-demanding person.
IMPOSERObtrusive one
IMPOSERButtinsky's broken promise (7)
IMPOSEROne forcing himself on others
imposerone who imposes (to set as a burden or task)