Hero leaves providing job (4)
I believe the answer is:
role
'job' is the definition.
(I've seen this in other clues)
'hero leaves providing' is the wordplay.
'providing' says the answer is hidden in the clue.
'ROLE' can be found hidden inside 'hero leaves'.
(Other definitions for role that I've seen before include "Duty" , "Stage part" , "Playing part" , "Actor's part" , "Impersonation" .)