There is no 8 letter anagram.
Some words that can be made include:
aortae, orated, adore, dater, deary, doter, ready, tardy, teary, today, toyed, trade, tread, yard, and year.
clasped
The letters ELEDRMA can also spell the word EMERALD.
The letters spell the word impede.
You can spell node and done with those letters.
Those letters will spell dental.
The letters spell the word calked. They also spell the word lacked.
docket
There are two unscramble possibilities:airtedtirade
clasped
degown
The longest words are 5 letters: fetid and tepid.
113 words, easy