Kotlin is a language that was created simply to lock you in using Jetbrains products. If you like JVM - Clojure is a perfect fit.
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I'm not going to list all the ways Kotlin is superior to Clojure for real development but suffice to say the two aren't really comparable when you have a team of programmers with heterogenous backgrounds.
However I do want to note that Kotlin having great IDEA integration is not lock-in. You can (and I sometimes do) code Kotlin + gradle with a pretty vanilla vim setup.
Clojure has one big advantage and it's also it's biggest weakness. It's a Lisp. I love Lisp's but I would never want to use one in a professional setting.
You can use Lisp in professional settings. Lisp has been used successfully in teams from 2 to 100 people with source-code bases of upto 10 million lines. The usual things apply: a good team, a good development environment, tests, documentatiom, etc.