Oi! you lot - what's with the brackets (i.e. this is what I was thinking about)? That's like a cross-word with clues to the clues ! "Cuddly prickly creature - Not to be mistaken with a curling stone and it sometimes ends up as pig flavoured crisps, but is more often found snuffling along a hedge sniffing out slugs and worms with its cute pointy little nose."
Anyway, to continue the thread: singular (!)