I'm feeling very dim. I actually found The Listener easier than this.
I have a full grid, save for 2d Expression of agreement to change after Department's cut (4), and I have four clashes, being 11a/8d; 16a/3d; 18a/6d; and 29a/30d. None of it yet makes any sense to me!
A gentle push in the right direction would be greatly appreciated. I'm sure I've gone astray somewhere.