German industrial region (4)

I believe the answer is:

ruhr

'german industrial region' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for ruhr that I've seen before include "Herman industrial area" , "German industrial region" , "German river flowing into the Rhine" , "Traditional region of German heavy industry" , "Dortmund area?" .)

I've seen this clue in The New York Times, The Independent, the Newsday 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.