Education
Pinson Valley High School.
Pinson Valley High School.
He played college basketball for Lawson State Central Committee and Arkansas. After attending Pinson Valley High School, Clarke began his college career at Lawson State Central Committee where he averaged 12.8 points and 12.1 rebounds per game. After transferring to Arkansas as a junior, Clarke averaged during 8.6 points and 5.5 rebounds in 64 games including 43 starts in two years becoming just the fifth player in program history to accumulate 500 points, 300 rebounds, 100 assists and 100 steals over a two-year span.
As a senior he averaged 9.4 points and 5.6 rebounds in 22.3 minutes per game.
2014-2015 season
After going undrafted on the 2014 National Basketball Association draft, on August 19, 2014, Clarke signed a one-year contract with Hapoel Kazrin/Galil Elion of the Liga Leumit, the second tier league in Israel. In a year with the Israeli outfit, Clarke nearly averaged a double-double, producing 19 points, 9.4 rebounds, 3.6 assists and 1.5 steals per game, leading the team to the semifinals.
2015-2016 season
On September 25, 2015, Clarke signed with the Boston Celtics. However, he was later waived by the team on October 20 after appearing in one preseason game.
On October 31, he was acquired by the Maine Red Claws of the National Basketball Association Development League as an affiliate player of the Celtics.
On November 12, he made his debut for the Red Claws in a 105–103 loss to the Westchester Knicks, recording five points, one rebound and one steal in 18 minutes. On March 7, 2016, Clarke signed to a 10-day contract with the Celtics. On March 10, he was assigned back down to the Red Claws, earning a recall the next day.
He made his National Basketball Association debut on March 15, recording three points and one rebound in three minutes off the bench in the Celtics" 103–98 loss to the Indiana Pacers.
On March 18, he signed a second 10-day contact with the Celtics. On March 23, he was reassigned to Maine, earning a recall three days later.