Professional speedster (5)
I believe the answer is:
racer
(Other definitions for racer that I've seen before include "Speedway competitor, perhaps" , "American snake" , "Fast-moving snake" , "Participant in speed contest" , "one in a hurry" .)
I believe the answer is:
racer
(Other definitions for racer that I've seen before include "Speedway competitor, perhaps" , "American snake" , "Fast-moving snake" , "Participant in speed contest" , "one in a hurry" .)