Family member, aged, hurt badly (8)
I believe the answer is:
daughter
'family member' is the definition.
(I know that daughter subproperty of family member)
'aged hurt badly' is the wordplay.
'badly' indicates anagramming the letters.
'aged'+'hurt'='agedhurt'
'agedhurt' anagrammed gives 'DAUGHTER'.
(Other definitions for daughter that I've seen before include "Family relative" , "The guard (anag.)" , "'''Don't put your ... on the stage, Mrs Worthington'' (Noel Coward) (8)'" , "Close relative" , "Female child" .)