Answer:

stair

Answer	Crossword Clue
STAIR	Device for upward mobility
STAIR	Flight part
STAIR	Step up

STAIR	Way up or down
STAIR	Part of a flight
STAIR	"As I was going up the ... - I met a man who wasn't there!"
STAIR	Part of a flight between landings, say
STAIR	Story connector
STAIR	Flight segment
STAIR	Flight unit
STAIR	Step up or down

STAIR	Flight component
STAIR	Risers plus treads
STAIR	Riser plus tread
STAIR	Step in a flight
STAIR	Escalator part
STAIR	Newel attachment
STAIR	One coming down from a landing
STAIR	Case opening?

STAIR	Link to another story?
STAIR	Step
STAIR	One of a flight between floors
STAIR	Step between landings
STAIR	Word with case or way
STAIR	Part of a flight between floors
STAIR	It may be winding
STAIR	Way up

STAIR	It takes you up and down but never moves
STAIR	Step between stories
STAIR	Flight that never takes off
STAIR	Tread plus riser
STAIR	Word before case or well
STAIR	One in a set of steps
STAIR	Riser and tread, combined
STAIR	One in a flight

STAIR	One step
STAIR	Climbing unit
STAIR	Flight of steps
STAIR	Landing spot
STAIR	One way to the top?