Hey there! To create a clan, you must first create a group. To do this, navigate to the [url=http://www.bungie.net/en/Clans/MyGroups]Groups[/url] page and select "Click here to start your own group". Once you have finished the group creation process, you can enable your group's clan by going to the group page > Admin Tools > About and setting your clan ID and platform(s). After you've enabled your group's clan, you simply need three members on the clan roster to have your clan name and ID appear in Destiny. Please keep in mind that these steps may only be completed through bungie.net. I hope this helps!