When was the last time you've tried? There's plenty of Clojure jobs today. Many Clojure companies (if not the most) are willing to hire remote. Clojure is steadily growing. Clojure conferences popping around the globe - Clojure/South, Clojure/North, Heart Of Clojure, ClojureTRE, Dutch Clojure Days, ClojureX (it feels like every European country has its own Clojure conf now).

I've been using Clojure for almost four years - switched three different jobs, never had a problem with finding a Clojure gig.

There are #jobs and #jobs-discuss channels on Clojurians Slack, watch those, some good job postings happen there.

If your manager trusts you, and the organization is structured to support it, you occasionally get the chance to write a project in your language of choice. Be sure that you’re thoroughly proficient with the language, runtime, and tooling before trying to introduce it though.

Yes.

https://clojure.org/community/success_stories

https://clojure.org/community/companies

Hope that helps!