last one 25a Almost cut off one's balls before leaders of South Kensington show up. ?n?a?k. Must be unmask but why, please? I can see the SK but how do I get unma and what does unmask have to do with any of the clue?
To unman is to "cut off one's balls" - so almost unman, before SK - the "leaders" of South Kensington. I suppose then "unmask" means "show up", as in to expose.