Possible Clues:

• The Da comes up to promise, my boy, for living
• Right of church to promise to come between archbishop's first daughter and her brother
• A decadent poet admits verse by churchman's right
• It's Father's turn to swear at his boy for a living
• Father comes up with a promise to his son of presentation for living
• For Church living - that's right
• Living for the present in church?
• 15 acrosses in a don for a living? That's right (8)
• Father is back and swears he can make a living on this
• A fellow keeping promises has gift of living