A PECULIAR CHALLENGE

Congratulations to Cadet Nyaware who solved the riddle.  The answer is "FRUIT."  Good job, Zach!  Is there a prize?  Perhaps I will return his cover.

Here's a new challenge:

My first is in fish but not in snail
My second in rabbit but not in tail
My third in up but not down
My fourth in tiara not in crown
My fifth in tree you plainly see
My whole a food for you and me

What is it?  This challenge will expire in about the time it takes a grape to become a raisin. Good luck.

Fish and snail.