Answer:
Man's most important invention.
An utensil used for bread. Also a paper cutter. Used by a thug to take a life, Or wielded by the tamest wife, When used to spread the butter.
When someone uses this acronym, you know you've got to pick up the pace
If you drive on this, pedestrians and the police will be pretty upset with you.
One might hang a locket from this
Two little holes in the side of a hill. Just as you come to the cherry-red mill.