Answer:
We travel much, yet prisoners are, and close confined to boot. Yet with any horse, we will keep the pace, and will always go on foot.
Pirates put their booty in it.
Iron on a mammal. Mammal on your feet.
I'm the source of all emotion, but I'm caged in a white prison.
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
Why did the teacher have to wear sunglasses?