Report of star not working (4)
I believe the answer is:
idle
'not working' is the definition.
(I've seen this before)
'report of star' is the wordplay.
'report of' indicates a 'sounds like' (homophone) clue.
'star' becomes 'idol' (idol is a kind of star).
'idol' sounds like 'IDLE'.
(Other definitions for idle that I've seen before include "Useless" , "-- Jack, pantomime character" , "not being engaged" , "Not used to work" , "Inactive - lied (anag)" .)