Answer: stepin

AnswerCrossword Clue
STEPINInvitation to a customer
STEPINOpen-heeled shoe.
STEPINStart to participate.
STEPINIntervene.
STEPINType of shoe or garment.
STEPINType of shoe.
STEPINUndergarment
STEPINKind of garment
STEPINFetchit of films
STEPINMr. Fetchit.
STEPINTeddy, for example
STEPINLike some garments
STEPINAttempt to mediate
STEPINEnter as a mediator
STEPINStart to break up a fight, say
STEPINGet involved with someone else's business
STEPINWelcome!
STEPINSubstitute (for)
STEPINBe a substitute
STEPINEasily donned, as attire
STEPINIntervene
STEPINDo more than mediate
STEPINShoe without laces, e.g.
STEPINDo more than listen
STEPINBecome involved
STEPINCross the threshold
STEPINMediate
STEPINTake over
STEPINIntercede
STEPINGet involved
STEPINAct as a substitute
STEPINEnter on foot
STEPINMediate, perhaps
STEPINPinch-hit
STEPINActor ... Fetchit of old films
STEPINEnter