Roman wall-builder (7)

I believe the answer is:

hadrian

(Other definitions for hadrian that I've seen before include "Roman Emperor after Trajan" , "Wall-building Roman emperor" , "His wall crosses northern Britain" , "Roman emperor and wallbuilder" , "Imperial wall-builder" .)

I've seen this clue in The Sun.

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.