rlwrap -m enables multiline editing, so changing the clj command to this :
rlwrap -m -r -q '\"' -b "(){}[],^%#@\";:'" clojure
allows for commands like C-^ on the repl which will bring the editor configured in RLWRAP_EDITOR for editing multilines entires, which is pretty convenient.
I almost never use the cli repl, but it is useful when you want to try something quick, and having a better experience for multiline whould be great.
No idea if there is any drawback on starting always like that.