You might spend sometime learning it out of curiosity, but you will never use it
The languages I used, are ones I had to use, either because they were the only option, or clearly the best option for my solution (C#, VB.Net, Powershell, SQL)
Clojure will never be your only option, and .. it being the best option is highly subjective
I tried to like Clojure, because of all the blogs and talks, and the reputation of it being a smart language for smart people (I obviously, wanted to belong to this group, and still do) .. but for my work, and use cases (Business Intelligence), it will never be the best option, or the only option
The same list that include Clojure, for me also include F#, D, Dart, Ada 2012, Idris, Julia, Rust .. I am sure since you asked this question, you have your own list too .. and you know, nothing will really work to motivate you