Imps are mischievous or playful creatures, often depicted as small supernatural beings or children. The term "Enfants terribles" refers to a phrase in French meaning "terrible children" or "bad boys", often used to describe young individuals who are rebellious or problematic.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Mischievous little devils. Explanations are generated by AI and may be inaccurate.