Answer:
Remove 'Y' and you do this with apparel. Remove 'E' and I am cautious.
Long and thin, red within, with a nail at the end.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
I am not alive, though I never die, to no one I've ever told a lie, today I can be god's warrior, and serve him with no horror, but tomorrow I might be devil's knight, for I am what ends the light.
What occurs once in a minute, twice in a moment and never in one thousand years?
A little house full of meat, no door to go in and eat.