Create a new clan but don't enable clan features (Use an Alliance sounding name). Set it up as an overall alliance to have clans under [A--a-b] (in the 'alliance & following' part of the admin tab). Invite your own clan. When clans join promote the clan owner to admin. Have a look at the link to see how I set up the Vintage Gaming Alliance. Leave membership open. That's ok because clan features disabled, that's just people joining the group for following or forums. Then, if a clan wants to join they use the Alliance page/interact/request group join. Or from another clans page you can select interact/invite alliance/your alliance (you need to do this for your own clan also). It is a bit of a pain, best thing you can do is save a link somewhere of the Alliance page & use it to promote on the forums & elsewhere. With it being an alliance you really should set it up making it as neutral as possible so no one clan is seen as 'in charge'. Good luck. Dazza.