Free to follow a family member (6)
I believe the answer is:
auntie
'family member' is the definition.
(I've seen this before)
'free to follow a' is the wordplay.
'free' becomes 'untie' (I've seen this in another clue).
'to follow' is a charade indicator (letters next to each other) (some letters go after or follow others).
'untie' after 'a' is 'AUNTIE'.
(Other definitions for auntie that I've seen before include "Close relative" , "BBC; relative (colloq,)" , "Relation; the BBC" , "The Beeb" , "Unite a strange family member" .)