I tried it out a few years back. Using it from clojure was a bit painful at the time but you might have more luck today. Qt-Jambi relies pretty heavily on Java

I tried it out a few years back. Using it from clojure was a bit painful at the time but you might have more luck today. Qt-Jambi relies pretty heavily on Java introspection eg scanning the fields of a class to find things of type Slot. I also had to write my own repl because UI actions are only allowed to happen inside the event loop thread. Check out github.com/jamii/inkling for some examples which may still be relevant.