In 1988, Clarke began an eighteen months role on the soap opera, Home and Away, as one of 17 original cast members, playing the character of Ruth "Roo" Stewart. The character of Roo was reinstated in the cast list, in 2010, but was now portrayed by Georgie Parker, hence along with Ray Meagher's character of Alf Stewart, she is only one of two original characters. She was one of several Home and Away cast-members to star in a stage musical about the soap, which toured the UK in 1991.