I think it's the other direction isn't it? As in, it's a runtime written in Java that runs WebAssembly, not a JVM that runs on WebAssembly.

I could be wrong but that's the impression I got.

Yes, you should be able to call wasm stuffs from Clojure with it too.

This is distributed as just a jar, should you can invoke it from Clojure, if that is what you mean.