That could be. However, I believe it's more to do with the fact that idiomatic Clojure encourages continual definition of nested layers of abstraction. Which makes the code beautiful from a certain viewpoint. However, it's also very similar to essentially writing a new language and adding features to it. If you buy this comparison, then reading your own Clojure code is like reading code written in a language you wrote, which is tailored to your own ideas about aesthetics and interfaces.
Which is great. However, that would then mean that in order to read anyone else's Clojure code, you would have to learn a new programming language every single time. I would buy that this gets easier the more you do it, because my second programming language was definitely easier to learn than my first.