Based on the clue 'adding almonds marshmallows to chocolate ice crea...', what is the answer?

Based on the clue 'addiction to pilfering without real need', what is the answer? What is referred to by 'addictive tobacco stimulant 8'? Based on the clue 'adding a letter to a theres something about mary s...', what is the answer? Based on the clue 'adding a letter to scone turns a baked good into t...', what is the answer? Based on the clue 'adding hot or tangy seasonings to food its satans ...', what is the answer? Based on the clue 'adding pepper sauce cayenne pepper to stuffed egg...', what is the answer? Based on the clue 'adding platinum to gold turns it from yellow gold ...', what is the answer? Based on the clue 'adding that he was stunned to win this star of ame...', what is the answer?