Some courses for honor students, for short

APS

["Advanced high school classes that can earn college credit."]

The clue refers to "Advanced Placement" courses, which are rigorous classes often taken by high-achieving students. "For short" hints that the answer is an abbreviation, and "APS" is the plural form of "AP," commonly used to describe these courses. The wordplay is straightforward, relying on the well-known abbreviation in educational contexts.