Motocross competitor (5)
I believe the answer is:
racer
(Other definitions for racer that I've seen before include "someone driving very fast?" , "Participant in speed contest" , "Fast-moving animal" , "Fast mover" , "Fast-moving snake" .)
I believe the answer is:
racer
(Other definitions for racer that I've seen before include "someone driving very fast?" , "Participant in speed contest" , "Fast-moving animal" , "Fast mover" , "Fast-moving snake" .)