can anyone suggest if/how I can empty the trash for my custom taxonomy?
I set up a custom taxonomy called 'teams' and I deleted a team, and then had to add it back. Seems easy enough, but I couldn't, so instead of a team with the slug for this taxonomy called (for example) blah I had to call it blah-2. I'm guessing this is because it has gone into trash. Not a big problem, but a little annoying.