Muslim star returned home (5)
I believe the answer is:
sunni
'muslim' is the definition.
(Sunni is an example)
'star returned home' is the wordplay.
'star' becomes 'sun' (Sun is an example).
'returned' is a reversal indicator.
'home' becomes 'in' ('he's home' can mean 'he's in').
'in' backwards is 'ni'.
'sun'+'ni'='SUNNI'
(Other definitions for sunni that I've seen before include "Member of another Muslim sect" , "Indian fig tree with aerial roots" , "One branch of Islam" , "Form of religion" , "A main branch of Islam" .)