Finally I'll note that the only examples I've seen, and I actually
did suck down the repo for lisp-interface-library, *do not show
:use :cl*.  For instance have a look at the code snippets from the
ASDF.pdf manual on page 26.  There are two there, and neither has
a use :cl or :common-lisp or whatever.

To fix this is trivial.  Add in a :use :cl in those code snippets,
and perhaps add "be sure to add :use :cl if you :use any other
systems" in the docs for uiop:define-package.