M.R.
Hi T.. I'm not sure I can help much but I can offer my perspective on what I read. :-)
It sounds like your son is a lot like mine. Very bright, above average, etc.... My son has social issues in public school. He gets bored or whatever and tries to be the class clown and although he lacks some social skills, he realizes he is different and tries to make up for it by getting attention and making others laugh.
For future reference it may benefit him to get hooked up with the person in charge of giftedness in your district. I forget the title but I am sure you can be pointed in the right direction. We had to and found they can help in choosing teachers for your son that may be more work oriented in the classroom so the setting is more familiar.
We also found providing an outlet socially for him helps. Play dates or whatever you want to call it, staying ACTIVE in sports really helps our son.
I hope someone can shed more light on this for you. In my own mind a counselor (not school one) that focuses on kids could help. We took our son for awhile and it was more like a family counseling. He opened up to her more than if it were just us and we understood and he better understood the boundaries we set for him.
Best of luck!!!!!
M.