Add the following code to your Emacs init file:
(autoload 'clhs-doc "clhs" "Get doc on ANSI CL" t)
(define-key help-map "\C-l" 'clhs-doc)
(custom-set-variables
'(tags-apropos-additional-actions '(("Common Lisp" clhs-doc clhs-symbols))))
Browse the Common Lisp HyperSpec documentation for the symbol at point.
Find the HyperSpec at clhs-root
.
With prefix arg, save the URL in the kill-ring
instead.