Common Lisp has Lisp in the name, but it is not the same thing. We're talking about languages developed 30 years apart here.
In the 80s, things like immutability just weren't pragmatic due to memory constraints, and CL was designed with pragmatism in mind. Scheme could be argued as FP. Clojure certainly is. CL is not.
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Wikipedia page for “functional programming”:
”The first high-level functional programming language, Lisp, was developed in the late 1950s…”
https://en.wikipedia.org/wiki/Functional_programming
Common Lisp has Lisp in the name, but it is not the same thing. We're talking about languages developed 30 years apart here.
In the 80s, things like immutability just weren't pragmatic due to memory constraints, and CL was designed with pragmatism in mind. Scheme could be argued as FP. Clojure certainly is. CL is not.