1970s BBC TV drama series starring Jack Hedley and Edward Hardwicke (7)

I believe the answer is:

colditz

(Other definitions for colditz that I've seen before include "German wartime prison" , "WWtwo high-security POW camp" , "German POW castle" , "German castle used as prison" , "Castle holding POWs" .)

I've seen this clue in The Mirror.

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.