Clark, 19, was arrested Wednesday morning, the Oklahoman reported. He was released on bail within hours.
The Cowboys' backup point guard, Clark, a freshman, had been in position to get more playing time, the newspaper said. The team announced in December that starting post Michael Cobbins would be out for the rest of the season with a ruptured Achilles tendon, and coach Travis Ford announced plans that would have meant a bigger role for Clark.
Clark was a star at Frederick A. Douglass High School in Oklahoma City. On Wednesday morning, he was a passenger in a car driven by Marcus Caddell, a former star football player at Douglass, the newspaper said.
Last fall, Clark was suspended from the OSU team for violating team rules.