Stars, single, sold out (5)
I believe the answer is:
idols
'stars' is the definition.
(idol is a kind of star)
'single sold out' is the wordplay.
'single' becomes 'i' (one**).
'out' indicates an anagram (out can mean wrong or inaccurate).
'sold' anagrammed gives 'dols'.
'i'+'dols'='IDOLS'
(Other definitions for idols that I've seen before include "Effigies worshipped as gods" , "objects such as the Golden Calf" , "Heroes" , "Objects of worship" , "Solid kind of images" .)