Pros for Clojure:
* Faster code -> result cycle. No need for compilation (except for AOT-compiling releases).
* Absence of static typing helps in some of the domains, e.g. web applications. We have successfully used Prismatic's Schema[1] in places where a stable data interchange format was needed.
* Binary compatibility. No need to recompile libraries for different Clojure versions.
* Community oriented towards simplification. People mostly try to mimic Rich Hickey and Clojure.core development approach.
* Orientation towards small libraries. I haven't yet had a need to use a framework written in Clojure (although Pedestal[2] seems interesting).
[1] https://github.com/Prismatic/schema [2] http://pedestal.io/