Possible Clues:

• River dividing Germany and Poland
• Good years regularly yielding flowing water
• Sounds as if it's a stinking stream
• German banker's lasting impression of hearing
• German/Polish river
• Round the ruddy back river it sounds stinking
• Poetry written by river - this one in Germany?
• ___-Neisse Line (border in Europe)
• Stinking stream one might have rode with
• River bordering Lusatia