1) Alcindor and Walton to UCLA 2) Astringents 3) Campus have-beens 4) Class reunion attendees 5) College benefactors, often 6) College boosters, usually 7) College fund-raising targets 8) College grads 9) College supporters, often 10) Fey and Franken, to SNL 11) Former bandmates 12) Grads 13) Grads at homecoming Found on https://www.crosswordclues.com/clue/alums