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: AMERICAN POETRY 
Clue: He wrote "Memorial Rain" for his brother Kenneth MacLeish, a pilot whose plane was shot down during WWI

SOLUTION: archibald macleish

PROBLEM: Category: YOU ARE SO FOXY! 
Clue: The foxglove plant is the main source of this medicine used as a stimulant  in damaged heart tissue

SOLUTION: digitalis

PROBLEM: Category: WHATCHA DOIN'? 
Clue: Splitting a pair & taking a hit on each

SOLUTION:
playing blackjack