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.
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Question: Category: A NOSE FOR GNUS 
Clue: A main predator of the adult gnu, it has a mane, too

Answer: lion


Question: Category: PLAYBOY COVER BOYS 
Clue: This hard rock bassist did a cover in March 1999; come on & give us a kiss!

Answer: gene simmons


Question: Category: FLY ME 
Clue: His name rings true as the man whose company built copters & the X-1, the first aircraft to break the sound barrier

Answer:
bell