Ascribed quality to daughter (10)
I believe the answer is:
attributed
'ascribed' is the definition.
('attribute' can be a synonym of 'ascribe')
'quality to daughter' is the wordplay.
I cannot really understand how this works, but
'quality' could be 'attribute' (I've seen this before) and 'attribute' is present in the answer.
'daughter' could be 'd' (genealogical abbreviation) and 'd' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for attributed that I've seen is " Ascribed".)