Struggling with SE corner
22d "Politician extremely good at first? A fine point" (6)
N?C??? looks like it would be NICETY to get a fine point, but if so can't see the parsing
27a ' "America's utter shambles" (staggers off) ' (6)
???T?S
Also 16a "Butt to be presented to before sex? I can't be arsed" (4,2)
?L?W ?T Looks like BLOW IT for can't be arsed, but if so don't see connection between BUTT and blow
Any help much appreciated