If you haven't deleted the old version, you should be able to delete the new ones to downgrade.

And it looks like the cider on melpa-stable newer thatn 0.14, so you'd have to build it yourself because use-package doesn't have the ability to actually build packages from commits or tags, it just grabs whatever MELPA or GNU ELPA have on hand. You can clone it with git if you want, or use something like Quelpa and Quelpa-use-package, since they let you build packages from source