I am using IntelliJ Idea 12.14 Community Edition on Windows 7. I have installed leiningen separately.
I was trying to create a new project using idea. I have also installed the La Clojure plugin and re started Idea several times.
Neither do I find options to create a Clojure project nor is the "project.clj" being visible to open project dialogue in intelliJ for an existing project.
Seems the project won't be openable until you also install the Leiningen plugin. The wiki shows it as browsable in the default repository but I didn't find it. I wound up just downloading it from here:
http://plugins.jetbrains.com/plugin/?id=5029
After install, the .clj file was openable as a project.