have an itch for (something)
To have an interest in or desire to do something. I have an itch for another road trip, but I'm not sure where to go. If you're starting to have an itch for acting again, then you should get back on stage.
itch for, have an
Also, itch to. Have a persistent restless craving for, as in Dean has an itch for excitement, or Chris is itching to go around the world. [Late 1500s]