Rock band with a real star (9)
I believe the answer is:
aldebaran
'star' is the definition.
(Aldebaran is an example)
'rock band with a real' is the wordplay.
'rock' indicates an anagram (the solver must 'rock' the letters around).
'with' is a charade indicator (letters next to each other).
'a'+'real'='areal'
'band' put after 'areal' is 'arealband'.
'arealband' anagrammed gives 'ALDEBARAN'.
(Other definitions for aldebaran that I've seen before include "Dear Laban (anag) - star in Taurus" , "Red giant in Taurus" , "big star" , "Taurus's leading star" , "Highlight" .)