Girl from a good home to duck, perhaps, out of convent finally (5)
I believe the answer is:
agnes
'girl' is the definition.
'a good home to duck perhaps out of convent finally' is the wordplay.
I cannot really see how this works, but
'a' is found in the answer.
'good' could be 'g' (abbreviation) and 'g' is found within the answer.
The remaining letters 'nes' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'from' acts as a link.
Can you help me to learn more?
(Other definitions for agnes that I've seen before include "girl" , "David's second wife" , "The Eve of St. - (Keats)" , "Miss Grey" , "Girl's name" .)