How do Ты Удалить клубы Ты have made?

I'm not sure if Ты can, или how to, but if Ты no longer want to be associated with it Ты can still unsubscribe to it. Just go to the клубы section on your profile, find the club and hit unsubscribe. The club will still be there but you'll won't be a part of it anymore.

Сообщить it.

I think there's no such a thing as a "Delete club" button.
But, Ты can Сообщить it или ask people to Сообщить that club.
Then it will be surely gone.