The crossword solution for the term 'Tongue Twister Pronoun' is SHE, which is a three-letter pronoun. A tongue twister is a phrase or sentence that is difficult to pronounce correctly due to its alliteration and repetition of sounds. Pronouns are words that can replace nouns in a sentence, such as he, SHE, it, they, etc. Therefore, the crossword solution SHE is a pronoun that can be used in a tongue twister.