United with daughter, made amends (6)
I believe the answer is:
atoned
'made amends' is the definition.
(I've seen this before)
'united with daughter' is the wordplay.
'united' becomes 'at one' ('at one' can mean connected or united).
'with' says to put letters next to each other.
'daughter' becomes 'd' (genealogical abbreviation).
'atone'+'d'='ATONED'
(Other definitions for atoned that I've seen before include "Made redress" , "Made amends" , "Donate (anag)" , "Made up for past wrongdoing" , "Made up for past wrong" .)