I think this depends on the Lisp, no? AFAIK Common Lisp supports a lot of imperative style programming--besides all the mutation/assignment functions, there's the `prog` macro that lets you use goto, `do`/`do*` to iterate over groups of statements, or even the `loop` macro. OTOH the Scheme-style Lisps are much more declarative thanks to TCO and a community that prefers the functional/declarative programming style.

But again, I suppose all the Lisp forms return values, and quibbling about the declarative : imperative :: expressions : statements mapping is just petty semantics