Maybe fifth bowler might be thus described? (3,4)
I believe the answer is:
top gear
'maybe fifth' is the definition.
(fifth gear in a car)
I don't understand the rest of the clue.
(Other definitions for top gear that I've seen before include "Portage (anag) - TV motor programme" , "Fashion" , "TV car programme" , "series on TV" , "5th in a car?" .)