Answer:
What hangs others yet can unintentionally hang itself?
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.
Only two backbones and thousands of ribs.
I'm very tempting, so its said, I have a shiny coat of red, and my flesh is white beneath. I smell so sweet, taste good to eat, and help to guard your teeth.
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
What has to be broken before you can use it ?