French daddy in good round wall-hanger (7)
I believe the answer is:
paperer
'wall-hanger' is the definition.
I can't judge whether this definition defines the answer.
'french daddy in good' is the wordplay.
'french daddy' becomes 'pere' ('father' in French).
'in' means one lot of letters goes inside another.
'good' becomes 'par' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'pere' put within 'par' is 'PAPERER'.
'round' acts as a link.
Can you help me to learn more?
(Other definitions for paperer that I've seen before include "Decorator" , "Prepare (anag)" .)