Reassigned to the minor leagues, Clancy spent the rest of the 1967–68 with the Vancouver Canucks of the minor Western Hockey League and the Buffalo Bisons of the AHL. After the season ended, on May 14, 1968, Clancy was traded back to Toronto.
Clancy was demoted to the lower-level leagues for the 1967-68 campaign, playing for both the Vancouver Canucks of the junior Western Hockey League and the Buffalo Bisons of the AHL. He eventually returned to Toronto by the end of the season on May 14, 1968.