The late unorthodox runner, maybe (7)
I believe the answer is:
athlete
'runner maybe' is the definition.
(I know that runner is a type of athlete)
'the late unorthodox' is the wordplay.
'unorthodox' is an anagram indicator.
'the'+'late'='thelate'
'thelate' is an anagram of 'ATHLETE'.
(Other definitions for athlete that I've seen before include "Jumper, say" , "Runner, jumper, thrower" , "Announces impending danger" , "Track performer" , "eg Dean Macey" .)