According to Get Recruited Films:
Clark is a hard-nosed throwback football player who just makes plays. On defense, he runs to the ball very well and can make plays on the edge. Takes good angles and uses very good technique to shed blockers, fill lanes and rips through the iso block. He's a very good tackler who drives his legs and finishes well. On offense he is a load to bring down. Has good speed to break the long run and will run between the tackles for tough yardage. College recruiters are looking at him as a LB, but he does have the ability to also play FB at the next level and that versatility makes him very recruitable.