Described being part of the family (7)
I believe the answer is:
related
I believe this clue is a double definition.
'described' is the first definition.
(relate can mean to narrate or describe)
'being part of the family' is the second definition.
(being related to members of a family)
(Other definitions for related that I've seen before include "within family" , "Agnate" , "Told in detail, being connected" , "were sympathetic" , "Having family links" .)