Clojure is definitely growing. Slowly, steadily, but growing nevertheless. There are more Clojure-specific conferences today than of Haskell, Elixir, OCaml, Elm, Prescript, Racket or Rust. There are more books and podcasts. Last year alone there were new conferences announced in Canada, Brazil, Russia, Ukraine and India. Almost every European country has its own Clojure-conf, some have multiple.

Of course it is still much smaller than Java, but Clojure can also be hosted on JS, BEAM or .Net. There's even a way to interop with Python and R.

Clojure is one of the nicest [production-ready] languages out there. It's pretty cool what it has achieved, with pretty much zero marketing effort and without support from big companies.