Lazy superstar, we're told (4)
I believe the answer is:
idle
'lazy' is the definition.
(similar in meaning)
'superstar we're told' is the wordplay.
'superstar' becomes 'idol' (I've seen this before).
'we're told' indicates a 'sounds like' (homophone) clue.
'idol' is a homophone of 'IDLE'.
(Other definitions for idle that I've seen before include "Eric, perhaps" , "Indolent" , "out of a job" , "Not doing much" , "Lazy, doing nothing" .)