Star once involved with old family member (8)
I believe the answer is:
ancestor
'family member' is the definition.
(I know that ancestor is a type of family member)
'star once involved' is the wordplay.
'involved' indicates anagramming the letters (involved can mean confusing or complex).
'star'+'once'='staronce'
'staronce' anagrammed gives 'ANCESTOR'.
'with old' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for ancestor that I've seen before include "Person from whom one is descended" , "An escort (anag.)" , "Enactors (anag)" , "Old member of the family -no traces (anag)" , "Adam was our first one" .)