1) Big name among losers 2) Big name for losers 3) Big name in dieting 4) Big name in diets 5) British Tommy 6) Carb counter of note 7) Chet on the frets 8) Country guitarist Chet 9) Country music legend Chet 10) Diet doctor 11) Diet doctor robert 12) Diet guru 13) Diet Revolution doctor 14) Dietitian Robert Found on https://www.crosswordclues.com/clue/atkins