I was stuck on 15a for ages (Rudeness from Blair, somehow uninteresting - 8) thinking that the definition was 'uninteresting', when in fact it was 'rudeness'.
I'm stuck on my last two:
25a Cover one nipple, initially - fast! (6) -n-u-e
27a Openings of Russia's exhausted lines result in defeat (7) -e-e-s-
If anyone can help, I'd prefer hints please.