Parking pro (5)
I believe the answer is:
valet
'parking pro' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for valet that I've seen before include "Personal male assistant" , "Gentleman%u2019s gentleman" , "'No man is a hero to his . . . . .'" , "Gentleman's assistant" , "Man's personal attendant" .)