Her first band was The Demented Stoats in 1979 with future Hawkwind drummer Richard Chadwick and guitarist Steve Bemand, followed by Next Years Big Thing, and then the Hippy Slags.
In 1989, Wishart started to perform with Hawkwind, alongside Dave Brock, keyboardist Harvey Bainbridge, bassist Alan Davey, drummer Richard Chadwick, and Simon House on violin.
Wishart shared writing credits with Brock and Davey on Space Bandits' opening song, titled "Images."
After a European tour in March and April 1991 (with Steve Bemand filling in for Dave Brock), Wishart ended her association with the group.
In 2017, Wishart performed live with Spirits Burning, alongside Steve Bemand, Richard Chadwick, Kev Ellis, Don Falcone, Colin Kafka, and Martin Plumley.