For a practical introduction to Clojure, check this out: https://heliosmaster.github.io/academy/learning-clojure

It's what I used years ago to learn the language.

I've been using Clojure for about 12 years now. I don't have any specific pointers, but the Clojure web site is a great starting point. There are plenty of talks from conferences, as well as several good books.