The term PAL OF HARRY AT HOGWARTS is referring to Ron Weasley, Harry Potter's best friend and fellow student at Hogwarts School of Witchcraft and Wizardry. Ron is a loyal and brave companion who often helps Harry in his adventures. He is the youngest son of the Weasley family and is known for his wit and sense of humor. The crossword solution for this term is RON, which is a three letter word.