One causing trouble (3)

I believe the answer is:

imp

(Other definitions for imp that I've seen before include "Little mischief-maker" , "Emperor" , "Small mischievous spirit" , "Minx" , "old-fashioned graft" .)

I've seen this clue in the Universal.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.