Which Lisp?

Question for you Lispfags; I'm checking out Common Lisp, and I'm finding it's lacking even the most rudimentary convenience string handling functions, like split. This disappoints me. You promise me the world, and yet I get stuck back in the 70's, writing yet another string library.
So, is there something akin to a 'modern' Lisp? I'm talking library/module functionality, unicode handling, and generally 'batteries included'.

>>1
CL-PPCRE, without which any string handling in CL is kinda pointless, includes a split function, appropriately called SPLIT.

(require :cl-ppcre)
(use-package :cl-ppcre)

(split " " "foo bar baz")

==> ("foo" "bar" "baz")