I circle kings but wear no crown, A silent guard that won’t back down. Not wall nor gate, yet I defend, What am I that rings the end?

Add a k and I'm a clown, remove the y, and I am a noun. I have no breath, but I bleed red, my color changes in a threesome with two other elemental variables. What happens to nails, the adjective, that can cause tetanus if you step on one, afflicted with this?

Put me on the table and cut me. But don’t eat me. What am I?

Through loop after loop Wrap me around your middle Orion's version line up in a group Put a notch in me when you solve this riddle

I can be slang for a dank nug. I can have weeping branches or curling white bark. I’m useful for swings, houses, forts, and Giving. What am I?