The Flash, for instance (9)
I believe the answer is:
superhero
'the flash for instance' is the definition.
(I know that Jay Garrick has the has the occupation superhero)
This is the entire clue.
(Other definitions for superhero that I've seen before include "Eg, Batman; surer hope (anag.)" , "comic book creation" , "Fictional character with strange powers" , "people didn't notice in Kent, for one" , "Person saving" .)