1) Artfully 2) Craftily 3) Cunningly 4) Foxily 5) How a card sharp plays 6) How an April fool may be done 7) How cheaters deal cards 8) How magicians work 9) How many winks are made 10) How Stallone acts 11) How to cheat 12) How to palm a card 13) In a calculating way 14) In a conniving way 15) In a crafty way Found on https://www.crosswordclues.com/clue/slyly