Sunderland. Definition is City. First 3 letters, sun (Sunday) , are unclued and ignored as per the special instructions. I can think of 2 explanations for the rest - der Land can mean 'of the land' in (very bad) German. (Land can mean region, der can mean 'of the', but not together as a phrase - 'of the region' would be 'des Landes, not der Land).
Or, it could be DDR (former East Germany) in Elan (region in Wales).
Please persevere - Araucaria is regarded by many as the very best setter by a long way.