Here's an announcement from Terje Norderhaug:
MCLIDE 1.0b3 is now available for SBCL.
MCLIDE is a free open source Macintosh IDE for Lisp implementations on any platform, based on the mature IDE of Macintosh Common Lisp. You can use MCLIDE to develop on various lisp implementations whether they run on Mac, Windows or other operating systems, all from one development environment:
The biggest news for the latest version of MCLIDE is support for the Clojure <clojure.org> lisp dialect, including the new Clojure 1.2 released earlier today. Now you can use the same GUI based lisp development environment for Clojure as with SBCL and other lisps.
Follow MCLIDE at <http://www.twitter.com/mclide>.