17a) Appearing etremely civilised, Yankovic goes public (5) c???c
30a) Statement of belief that leads company to hold on to wine (5) c???o. Is it credo?
68a) Your head looks different-thats grim (4) ?o?r
78a) Wet through most of Saturday on disastrous date (9) n?t?r?t?d
10d) Cave in and makes changes ahead of schedule (2,7) i? a??????