Perhaps I'm just stuck in my ways, but I like to be able to see in the code I'm looking at what attributes or actions are applicable to this thing. With Clojure I lose all of that. What is in this map? Well, I better print it out to know.

Clojure's dynamic typing, and any dynamic language to me, is only useful if you're never more that 2 stack frames away from your data's source. After that it's a lot of documentation to make sure you don't cock it up.