Lazy-sounding hero (4)
I believe the answer is:
idol
'hero' is the definition.
(I've seen this in another clue)
'lazy-sounding' is the wordplay.
'lazy' becomes 'idle' (similar in meaning).
'sounding' indicates a 'sounds like' (homophone) clue.
'idle' is a homophone of 'IDOL'.
(Other definitions for idol that I've seen before include "Object of excessive adoration" , "Pagan symbol" , "'There's a one-eyed yellow -' (Hayes)" , "loved one" , "Pin-up" .)