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.

Q: Category: CROSSWORD CLUES "D _ _ _ ER" 
Clue: Macbeth thought he saw one

A: a dagger
****
Q: Category: "BEL"LISSIMO! 
Clue: Eric Clapton had these title "Blues" in 1973

A: "bell bottom blues"
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Q: Category: AMERICANA 
Clue: This Cambridge, Mass. university is named for a man who graduated from England's Cambridge Univ. in the 1630s

A:
harvard
****