TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: "Y"? 
Clue: You can split the atom or even do barrel rolls using this toy

SOLUTION: a yo-yo

PROBLEM: Category: WE'VE GOT ISSUES 
Clue: Hopefully this magazine with editor-in-chief Rosemary Ellis earned its own seal of approval

SOLUTION: good housekeeping

PROBLEM: Category: YOU'RE MAKING ME "MAD" 
Clue: She was from Armentieres in a popular WWI song; Hinky Dinky Parlay Voo!

SOLUTION:
mademoiselle