Starry team gets real! (8)
I believe the answer is:
sidereal
'starry' is the definition.
(thesaurus)
'team gets real' is the wordplay.
'team' becomes 'side' (both can mean a sports team).
'gets' is a charade indicator (letters next to each other).
'side'+'real'='SIDEREAL'
(Other definitions for sidereal that I've seen before include "Full of stars" , "Relating to the constellations" , "involving stars" , "Relating to the distant stars" , "Realised (anag) -- relating to the stars" .)