The anagram is "phial" (archaic form of vial).
Also the proper abbreviation Phila. (meaning Philadelphia)
Those letters spell natural.
aliph
The letters in "these letters" can spell the phrase "ether settles." The letters can spell shorter words such as trestles, sheerest, shelters, and treeless.
Those letters will spell dollar.
The letters spell 'broccoli'.
Those letters spell psycho.
Those letters will spell carnivore.
The letters can spell the anagram "annotation."
Those letters will spell democratic.
Those letters will spell turnip.
Those letters will spell artichoke.
Those letters will spell hairy.