Clan support is now live, You can find the feature in your control panel.
At the moment you will not see your clan in your profile or in-game.
We first like to test the feature to see if everything goes well. Note that a clan ladder is also not released yet.
We wish all clans good luck registering their clan, inviting their members and preparing their profile.
There will not be a clan reset after we release the clanladder.
Please tell us when any bugs or glitches appear on the forums.
As stated before:
When the clan system is released there should be no reason to steal existing clan names, only if you are a member of the clan you should make one. The clanleader can always be changed later. People that try to take away existing clannames will be banned from Naruto-Arena.