If you want to do Clojure development with vim, the key things you need are the fantastic Fireplace.vim from dear, dear tpope along with Paredit. A great getting started post by Gabe Hollombe is here. It mostly mirrors my current setup.
You won’t have the full power of editing Clojure in vim without using paredit. When you first start using it, you will feel like you’re swimming in a vat of Jello. It is a very difficult initial transition. Once you get the hang of it, though, it is like having a superpower.
Here’s the key to getting started: knowing how to disable paredit mode from within the editor. Here’s the secret: in vim command mode, type:
That turns off paredit mode. To turn it back on, type that command again. Paredit forces you to balance parens () and all matching characters such as “”, , et al. That is what is great about it, but it is very disorienting when you are just getting started. You will want to quickly move to having paredit enabled at all times, as that is how you will become proficient with it. For those first few sessions with it, though, being able to turn it off will probably make the difference between loving and hating it.
You can also toggle paredit across all sessions by adding this to your .vimrc (0=off, 1= on):
Here’s the other key to paredit: map your leader. The leader is supposed to be mapped to , in paredit by default, but, for whatever reason, it was not for me. So I added this to my .vimrc:
To increase your paredit skills? Use the docs.
Some more useful info about Vim and Clojure from clojure-doc.