I don't know clark personally however him being an albany boy i can tell you what i've heard.
he is a decent guy. dad was very well connected in the albany football scene. went to the grammar school. brother is apparently an absolute nightmare. clark is quiet. apparently pretty popular.
tbh he sounds like one of those "popular" kids, but somewhat decent private school kid. (to use high schoolers terminology)
I hear no issues with us trading for clark. unless he has changed since he left albany.
What do you mean by "his brother is a nightmare"?