I suppose this report comes down to one thing, your claim of defamation.
Firstly, is defamation against the rules in SAES specifically? No actually, not at all.
That aside though, it shouldn't be condoned. However to accuse someone of defaming you, you would have to prove that they are making claims that are blatantly incorrect and they knew them to be incorrect at the time of making them.
You have no covered the particulars of your gangs demotion here, however if Clar has made accusations against your gang and the GM's have accepted his evidence and acted on it, it was obviously deemed to be truthful information.
Therefore, repeating this information, would not fall under being defamatory.
What I am asking basically is, can you prove what Clar is saying is blatantly incorrect and he knows it to be a lie?
If not, there is no defamation.
There's a reason defamation is notoriously hard to prosecute in a court of law.
You cannot report ClaR simply because he is accusing you of misconduct or speaking ill of you, that is not against any rules. We can discuss it further though if the accusations are completely unfounded and false and can be proven to be false.