She represented the 34th House District (map), which is located in Genesee County, and includes much of the city of Flint.
Clack graduated from Tennessee State University in 1969, receiving her Bachelor of Science degree in education.
She sat on the Education, Families and Children's Services, Health Policy, and the New Economy and Quality of Life Committees.
In 2008, Clack ran for and won election the First District Genesee County Board of Commissioners.
[3] On August 4, 2009, Clack lost the special general mayoral election against Dayne Walling.