Clark was called up in 1990 to help Brooklin win the Mann Cup, and was drafted by the Redmen in 1991, scoring 55 goals and 126 assists plus 467 PIM in 190 games, including a brief stint for Brantford in the "old" NLL in 1991.
After the 2006 season, Clark was offered the position of head coach of the Toronto Rock, and immediately retired from playing to take the job.
This was good enough to make the playoffs, but the Rock were beaten 10-6 by the eventual Champion's Cup-winning Rochester Knighthawks.
After the game, Clark was involved in an altercation with Minnesota forward Sean Pollock outside the Rock dressing room.
[7] The Rock won their 2009 season opener against the New York Titans, but after they lost their next two games, scoring a total of only 15 goals, Clark was fired on January 20, 2009, along with assistant coach Terry Bullen.
On June 24, 2015, Clark was named the second head coach of the New England Black Wolves, joined by assistants Jim Veltman and Tracey Kelusky.