Port of northern Germany, once a great trading centre (6)
I believe the answer is:
lubeck
(Other definitions for lubeck that I've seen before include "Cause anxiety to" , "on the German coast" , "Baltic Hanseatic port" , "German Baltic port" .)
I believe the answer is:
lubeck
(Other definitions for lubeck that I've seen before include "Cause anxiety to" , "on the German coast" , "Baltic Hanseatic port" , "German Baltic port" .)