Superstar's entourage (5)
I believe the answer is:
posse
'superstar's entourage' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for posse that I've seen before include "Troop at the service of a local sheriff" , "Group formed by sheriff" , "Sheriff's team" , "Band of people involved in some activity" , "Group of sheriff's men" .)