Daughter right to copy curtain (5)
I believe the answer is:
drape
'curtain' is the definition.
(I know that curtain can be written as drape)
'daughter right to copy' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'right' becomes 'r' (common abbreviation).
'to copy' becomes 'ape' (ape can mean to copy or imitate).
'd'+'r'+'ape'='DRAPE'
(Other definitions for drape that I've seen before include "Cover loosely for padre" , "Pared (anag.)" , "Screen" , "Hang (cloth) in folds (on something)" , "Cover with a loose cloth" .)