Answer: slinky

AnswerCrossword Clue
SLINKYFurtive.
slinkyGraceful and sinuous in movement, line, or figure
slinkysinuous (characterized by curves, bends or turns, also SINUOSE)
SLINKY"For fun it's a wonderful toy" item
SLINKYClassic toy
SLINKYSpring toy?
SLINKYToy consisting of 80 feet of wire
SLINKYIt goes downstairs
SLINKYAmerican toy introduced in 1945
SLINKYSinuous
SLINKYSpring-like toy
SLINKY"For fun it's a wonderful toy" sloganeer
SLINKYOfficial state toy of Pennsylvania
SLINKYVampish
SLINKYSpring toy
SLINKYResult of trying to invent a battleship engine part
SLINKYStep-descending toy
SLINKYLike a soft, clingy gown
SLINKYCoiled stair-walker