Before turning to actual jobs, he even wrote and published a book on Kindle.
Most commonly associated with the Nara clans Shadow Manipulation Jutsus like Shadow Paralysis Kage shibari Shadow Stitching Kage nui and so on.
Now Naruto is so fast that taking the time to hurl a clone would take longer than just blitzing them himself.
It can no longer be useful to him at his current level.
A jutsu might need a lot of hand signs for a low level Chakra controller while it may take a lot less or no hand signs for a better Chakra controller.
Ne Short for Nezumi One look at it and you know where this sign is most prominently used.