Answer: rapid

AnswerCrossword Clue
RAPIDWinged
RAPIDHurried
RAPIDJim Croce "... Roy (The Stock Car Boy)"
RAPIDFast Green Apple Quick Step song?
RAPIDWord with growth or transit
RAPIDTransit modifier
rapida fast-moving part of a river / swift (speedy (swift))
rapidthe swift-moving part of a river
rapidswift
RAPIDMeteoric
RAPID...-fire
RAPIDIt has a fast current
RAPIDWord with "transit"
RAPIDVery fast
RAPIDLike some heartbeats
RAPIDWord before "fire" or "transit"
RAPIDREM part
RAPIDWord before "transit" or "fire"
RAPIDLike white water?
RAPIDWord with "fire" or "transit"
RAPIDFeller called ... Robert
RAPIDLike some transit.
RAPIDOne kind of transit.
RAPIDKind of transit
RAPID"... Robert" (Bob Feller)
RAPIDKind of fire or transit
RAPIDPart of IRT
RAPID... transit
RAPIDDescribing a young Feller
RAPID... City, S.D.
RAPIDWord with transit or fire
RAPIDCeleritous
RAPIDTantivy
RAPIDWingy
RAPIDWord with fire or transit
RAPIDPrecipitate
RAPIDWord before fire or transit
RAPIDAllegro
RAPIDGalloping
RAPIDPart of I.R.T.