Territory with a massive rock (9)

I believe the answer is:

gibraltar

(Other definitions for gibraltar that I've seen before include "1 [THE ROCK]" , "British-ruled promontory at the southern tip of Spain" , "UK territory" , "Great rock at south of Spain" , "Colony on rock" .)

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.