For backend there is luminus (https://luminusweb.com/) or Kit (https://kit-clj.github.io/). They are basically project templates that wire together a ton of popular solutions for various things - database access, migrations, security, html templating, etc. Also includes frontend frameworks like re-frame if you want.
edit: forgot to mention fulcro (https://fulcro.fulcrologic.com/) which is an interesting full stack solution. I haven't used it though so can't comment, but it sure seems documented well!