Answer:
A person's greatest asset.
A big shiny black car nobody wants to be a passenger in.
Remove 'Y' and you do this with apparel. Remove 'E' and I am cautious.
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
What does someone else have to take before you can get?
I am a room that has a roof but no walls. What am I?