That's more of a Lisp problem than a Clojure problem. All the Expert Lisp Programmers settled on Emacs many moons ago (as in decades past) and no one has bothered to write another (good) Lisp-friendly text editor since. And well, you can't really write Lisp without a suitable text editor, so all the Lisp neophytes either give up or learn to cope with emacs and eventually forget about replacing it.