Yas-clj is a project mainly written in ..., it's free.
YASnippet snippets for Clojure
This is a collection of Clojure snippets for the YASnippet template system for Emacs.
After cloning this repository, rename the resultant directory to clojure-mode. Then, simply copy the clojure-mode directory into the yas/root-directory
which should be something like ~/.emacs.d/yasnippet-*.*.*/snippets. If you want to place the folder inside of the text-mode folder instead, you must first remove the .yas-parents file from the clojure-mode directory.