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: WHO'S THE MRS.? 
Clue: Mrs. James Carville

SOLUTION: matalin

PROBLEM: Category: ANAGRAMMED HITCHCOCK FILMS 
Clue: "Marine"

SOLUTION: "marnie"

PROBLEM: Category: CLAP TRAP 
Clue: Roman emperor from 54 to 68 A.D., he had a claque of 5,000 professional clappers on his concert tours

SOLUTION:
nero