I think this might help you
So I am in a clan in which around when people were in lvl 4 clans, they had a nasty split involving back door emails, and pretty much an overthrow. I joined and we have grown very much to a legit war clan. We were losing a lot near the rebuild, so we made a feeder. The leader had an alt there and that was where people were sent to learn, whether they were someone who found out about us, they went there to be evaluated. Eventually people that did horrible in war went there to learn how to attack in a space where a failed war attack meant nothing, as it didn't hinder the progress of the main clan full of attackers who did their part, and would be a bit dissapointed if some noob failed miserably because they wanted to try out some half thought out attack. If you would like to come to my clan, talk to leader about this system, then PM me for more on this.
Deadpool out
(New IGN after update:)