1) Bones up 2) Crowds 3) Does last-minute studying 4) Hits the books 5) Is a quick learner 6) Learns fast 7) Makes final preparations 8) Makes up for campus partying 9) Overeats 10) Overpacks 11) Packs 12) Packs sardines 13) Packs tightly 14) Pores for a purpose 15) Prepares for a final 16) Prepares for finals Found on https://www.crosswordclues.com/clue/crams