German slim and prosperous (8)
I believe the answer is:
dietrich
'german' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see a link between them that I can't see?
'slim and prosperous' is the wordplay.
'slim' becomes 'diet' (diet can mean to slim down).
'and' means one lot of letters go next to another.
'prosperous' becomes 'rich' (similar in meaning).
'diet'+'rich'='DIETRICH'
Can you help me to learn more?
(Other definitions for dietrich that I've seen before include "Former actress" , "Marlene . . . . . . . ., late German star of stage and screen" , "Marlene . . . . . . . . was a famous film star" , "Marlene ... old film star" , "Marlene -, German actress" .)