"Apu" refers to the main character in Satyajit Ray's "The Apu Trilogy." In this film series, Apu is a young man who undergoes various experiences and transitions in his life, depicted across three movies: "Pather Panchali," "Aparajito," and "Apur Sansar." The trilogy is recognized as one of the most significant works in Indian cinema.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Kwik-E-Mart operator on "The Simpsons". Explanations are generated by AI and may be inaccurate.