8d: look at things backward, definition "tart up".
12/21: hinges on a common crossword synonym for guy (verb).
19d: backwards (uprising in wordplay), common crossword monster + a fairly obscure European currency.
11: (E for English + synonym for newspaper) inside synonym for revolt.
Funny, I noticed the apparent gaffe in 10a, but I'm forgiving about technical details and don't generally expect setters to be accurate.