Aggressive dog (3)

I believe the answer is:

cur

'aggressive dog' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for cur that I've seen before include "Aggressive dog" , "Mongrel; rascal" , "Inferior dog or one of mixed breed" , "Useless dog" , "Vicious dog" .)

I've seen this clue in The Daily Mail and The Times.

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.