Answer:

STEPIN

Answer	Crossword Clue
STEPIN	Take over
STEPIN	Easily donned, as attire
STEPIN	Intervene

STEPIN	Do more than mediate
STEPIN	Shoe without laces, e.g.
STEPIN	Do more than listen
STEPIN	Become involved
STEPIN	Cross the threshold
STEPIN	Mediate
STEPIN	Be a substitute
STEPIN	Intercede

STEPIN	Get involved
STEPIN	Act as a substitute
STEPIN	Enter on foot
STEPIN	Mediate, perhaps
STEPIN	Pinch-hit
STEPIN	Actor ... Fetchit of old films
STEPIN	Enter
STEPIN	Mr. Fetchit.

STEPIN	Open-heeled shoe.
STEPIN	Start to participate.
STEPIN	Intervene.
STEPIN	Type of shoe or garment.
STEPIN	Type of shoe.
STEPIN	Undergarment
STEPIN	Kind of garment
STEPIN	Fetchit of films

STEPIN	Invitation to a customer
STEPIN	Teddy, for example
STEPIN	Like some garments
STEPIN	Attempt to mediate
STEPIN	Enter as a mediator
STEPIN	Start to break up a fight, say
STEPIN	Get involved with someone else's business
STEPIN	Welcome!

STEPIN	Substitute (for)