The way to use sudokulover's link is to copy and paste the whole address - don't just link automatically or it won't work (and thanks, sudokulover).
13a is the only one I got after two separate goes at the clues yesterday. I kept having ideas about them but got nowhere.
Is it worth persevering (is it
fun?) or is it a case of 'wait for next month' yet again? At the moment it just seems grim - like trying to have a conversation with someone when you've nothing in common.