Challenged wicked reckless person (9)
I believe the answer is:
daredevil
'reckless person' is the definition.
(I've seen this before)
'challenged wicked' is the wordplay.
'challenged' becomes 'dared' (daring is a kind of challenging).
'wicked' becomes 'evil' (synonyms).
'dared'+'evil'='DAREDEVIL'
(Other definitions for daredevil that I've seen before include "Stuntman" , "Seeker after danger" , "Recklessly bold person" , "Person who takes risks" , "Madcap" .)