There seems to be three crucial clues:
1A - whose inappropriate musical offering recorded by 7 ? (12) I have ????U?I???R?
7D - French provincial leaflet for raiser of 10 (6, 6) I have ???M???A???
10D - Hogarth slots unexpectedly provided by 7 (7, 5) I have H?R???S?????
Help !