Told of being of the same family (7)
I believe the answer is:
related
I believe this clue is a double definition.
'told' is the first definition.
(as in relating a story)
'of the same family' is the second definition.
(relatives are related)
'of being' is the link.
(Other definitions for related that I've seen before include "within family" , "of one family" , "Reported" , "Told (a story etc)" , "Having family links" .)