20: Cause of a Macy's riot?
21: Pitcher's pitch, sometimes
28: One making a bundle on the farm?
32: Measure off a distance, perhaps
33: Tennis match divisions
41: Responds correctly on 'Jeopardy!'
42: Studied (with 'over')
45: Top students graduate with them
46: It can be saved and cured
49: Scrooge and Silas Marner