Ancient ceremonial circle (5)

I believe the answer is:

henge

(Other definitions for henge that I've seen before include "Bronze Age stone circle" , "ancient monument" , "Ancient stone circle" , "Prehistoric circular area" .)

I've seen this clue in 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.