Profiling of Clojure code should be possible with any Java profiler. We have had success with the YourKit Java Profiler, licenses for which were generously donated by YourKit.
YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: