There is no seven-letter anagram.
Common (non-Scrabble) words made from the letters include:
comped, compel, clomp, coped, loped, model, moped, poled, clod, clop, code, coed, cold, come, comp, cope, demo, dole, dome, dope, lode, lope, meld, mode, mold, mole, mope, oped, pled, plod, poem, pole, cod, cop, doc, doe, elm, led, lop, mod, mop, ode, old, ope, pod, pol, do, em, lo, and me.
The letters in "these letters" can spell the phrase "ether settles." The letters can spell shorter words such as trestles, sheerest, shelters, and treeless.
The letters can spell the anagram "annotation."
Those letters spell eczema.
Those letters will spell the verb launder.
The letters CEIECTLR can spell the word ELECTRIC.
Those letters spell natural.
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 strum.
Those letters will spell exciting.
Those letters will spell stigma.
Those letters spell arrest.
Those letters spell exchange.
Those letters spell vulnerable.
Those letters spell illness.
Those letters spell holiday.
Those letters spell opposite.
Those letters spell campaign.