Answer:
Round as a button, deep as a well. If you want me to talk, you must first pull my tail.
Beautiful girls strut and sexy men 'do their little turn' on this.
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
Snake coiled round and round. Snake deep below the ground. Snake that's never had a head. Snake that binds but not with dread.
A seed am I, three letters make my name. Take away two and I still sound the same.
What has wheels and flies but is not an aircraft?