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.

[EX Q]: Category: IT'S ALL GREEK TO ME 
Clue: This branch of medicine is from the Greek for "mind cure"
[EX A]: psychiatry

[EX Q]: Category: MAKE IT STICK 
Clue: Use instant glue for glass & white glue with a clamp for wood, which has these, like skin, for glue to enter
[EX A]: pores

[EX Q]: Category: AGRICULTURE 
Clue: This dictator's support for the erroneous theories of Trofim Lysenko set back Soviet agriculture
[EX A]:
stalin