Answer: goldbug

AnswerCrossword Clue
GOLDBUGStory by Poe (with "The").
GOLDBUGPoe title.
GOLDBUGInsect of mystery
GOLDBUGFamous insect
GOLDBUGPoe's treasure finder
GOLDBUGEdgar Allan Poe story, with "The"
goldbugAn advocate of a single gold standard for currency
goldbuga gold beetle
goldbugA person favoring gold as an investment