The term 'Middle-Earth Resident' refers to a character from J.R.R. Tolkien's fantasy world of Middle-Earth. The crossword solutions for this term are 'ELF', which stands for an Elven race of beings that inhabit Middle-Earth. Elves are immortal, wise, and powerful creatures who possess magical abilities and are known for their beauty and grace. They are also known for their long-lived lifespans and their ability to speak many languages. Elves are often seen as guardians of Middle-Earth and are often portrayed as allies of the protagonists in Tolkien's stories.