Hi Daniel, thanks for volunteering! I added you as the ob-clojure.el maintainer on the main branch (commit 1c7acb427).
Replying to emails when we CC you should be enough, but more help is always welcome, of course. Also, please create an account on https://savannah.gnu.org/git/ and ask to join the Emacs group: https://savannah.gnu.org/git/?group=emacs An Emacs maintainer will give you write access so that you can push commits for ob-clojure.el directly. When in doubt, just ask the mailing list :) Cheers, -- Bastien