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.
During the 1967-68 season, Clancy was reassigned to the lower-level leagues, specifically the Vancouver Canucks of the junior Western Hockey League and the Buffalo Bisons of the American Hockey League (AHL), before ultimately returning to Toronto by the end of May 1968.