1) Cautious gambler 2) Cautious gambler, slang 3) Cheap individual 4) Cheapskate 5) Closefisted type 6) Not much of a sport 7) Penny pincher 8) Penny-ante player 9) Petty gambler, slang 10) Petty one, slang 11) Skinflint 12) Slang for a wild bullock 13) Stingy person 14) Stingy soul 15) Tight-fisted sort Found on https://www.crosswordclues.com/clue/piker