Go to School > Activities > Clubs and select the club.
Click the Delete button.
You won't be able to click this button if:
- There is one or more attendance marks recorded for a club session
- There is an invoice attached to the club from a payment or sign up
- A trip has been set up to link to the club
This means that for paid clubs, even if attendance marks are removed for each session, the club will not be possible to be deleted once a sign up is logged.