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.
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Question: Category: 10 
Clue: This teenage tennis goddess is often escorted by older Russian hockey players

Answer: anna kournikova


Question: Category: AMERICAN POETRY 
Clue: In "Stopping by Woods on a Snowy Evening", he wrote that he had "promises to keep, and miles to go before I sleep"

Answer: frost


Question: Category: A ROLE IN THE HAY 
Clue: In 1939 this future Beverly Hillbilly starred as Elmer Whipple in the Broadway musical "Yokel Boy"

Answer:
ebsen