Clickbank, as far as I know, will send checks to your country if you were even able to sign up with them. The payment, though, will be made in USD for all countries, I think. I'm not very sure about this but I remember reading this on CB somewhere. Cheers
Yes CB will send checks to the UK and it will be in dollars and most of the time the bank take $11 fee to clear the check.
I live in UK and I receive Clickbank checks. Usually after they have sent it, it takes about a week before I get it. 1$ is approximately £0.50