cljr move to let - clojure-emacs/clj-refactor.el GitHub Wiki
ml Move to let
Move the current form to the closest let.

Given this:
(defn handle-request
(let [body (find-body abc)]
{:status 200
:body body}))
With the cursor in front of 200, I do cljr-move-to-let:
(defn handle-request
(let [body (find-body abc)
X 200]
{:status X
:body body}))
Now I have two cursors where the Xes are, so I type out the name,
and press enter:
(defn handle-request
(let [body (find-body abc)
status 200]
{:status status
:body body}))
Pretty handy. And it works with if-let and when-let too.