The https://github.com/practicalli/clojure-lsp-config are working now, albeit within an existing Clojure form, i.e. a rich comment (comment ,,,) . The CLojure LSP team have pushed a fix for snippets, to make them work at the top level, so the next release snippets should be fully working.
Clojure LSP snippets is part of the https://github.com/practicalli/clojure-lsp-config repository
The Yasnippets and Clojure LSP snippets section of Practicalli Spacemacs has been updated https://practical.li/spacemacs/snippets/