Lisp is a language best "learned" furiously, through different dialects, implementations, extensions and library packages, and of course, thorough own implementation.
Clojure hasn't undergone the same vetting other dialects have gone thorough. Reading Common Lisp the Language (2nd Ed.) you will truly see what it takes to add a feature to a language and what it takes to remove it. 20+ people had to convince each other why something was worth keeping :-) And from there read the specs for ISLisp, EuLisp and and LeLisp. Schemes implementations have been a treasure trove of pure human genius: one implementation, T, has been responsible for so much it merits a year of your life just to read the associated literature and follow the heritage of this beautiful language.
Clojure has Rich Hickey's video, but none of it is, yet, time tested. A fine Lisp, no doubt, just not one for active learning.