Well, it depends, I mean, you’re comparing a programming language against web frameworks.
Is Clojure more productive then ruby, python or java, I’d say yes in general.
That said, for simple crud with no need for customization or advanced features, Django is hard to beat. Its pretty much a wizard for that kind of use case.
I’ve never looked to see if an equivalent framework existed in Clojure. You should look for that and try them out and see.