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.

Category: ALLITERATION 
Clue: Football, baseball & water polo when watched rather than played
a spectator sport

Category: HEY, "D.J." 
Clue: James Buchanan Brady's gem of a moniker
diamond jim

Category: DON'T SAY THE L-WORD 
Clue: Scientifically, this tart-tasting fruit is Citrus paradisi

grapefruit