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 simplicity, answers should be in all lower cased letters.
PROBLEM: Category: MAGIC 
Clue: 2-word "conjuring" brand name for a felt-tip pen that comes in many colors

SOLUTION: magic marker

PROBLEM: Category: MOZART & FRIENDS 
Clue: Mozart wrote a lovely motet for Venanzio Rauzzini, one of these specially treated singers

SOLUTION: a castrato

PROBLEM: Category: 2-PART WORDS 
Clue: One example of a "daffynition" is defining this synonym for a beggar as "a fry cook"

SOLUTION:
a panhandler