Well, also, sadly, the first thing I would want to be right now happens to be... a GUI, which seems to be the archnmesis of Java in general, and clojure in particular ;)
If your target is the web browser, then Clojurescript is your friend. There's Clojure Dart for mobile, cljsrn for React Native, Clojure CLR for .Net
Ain't nothing wrong with Swing or JavaFX :).
Ehhhh they work, but at what cost? If you know them already go ahead, but the other popular desktop ui's are probably easier and more maintainable. I really do wish desktop and mobile in Java was more popular. I'd really like to have one language and ecosystem.