Probably cider-format-buffer would kill it.

fixup-whitespace with your cursor around the whitespace should also do it

Can I do something like this? here's a minor mode B and major mode A, I want to bind a buffer local keybinding in B-mode-map on A-mode-hook.

a qustion about swiper, I personally like it. I'm asking myself now How I could do search and replace with swiper

is there a way for doing with swiper or do you use other construct and use swiper only for searching?

swiper only for searching

for query repalce in a single buffer, use anzu or multiple-cursors

really? helm-swoop does it, there’s nothing similar for swiper? in helm-swoop - you can press C-c C-e and edit all the occurrences in a single buffer.