The term 'Grade Lower' can be summarized as a job that involves reducing the grade of a student. This could be done by subtracting points from their grade or by assigning them a lower grade than they originally had. The crossword solution for this term is 'MINUS', which indicates that the job involves subtracting points from a student's grade. This could be done in order to bring down their overall grade, or to make up for mistakes made on an assignment.