Lush, the German round skating area (7)
I believe the answer is:
drinker
'lush' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'the german round skating area' is the wordplay.
'the german' becomes 'der' ('the' in German).
'round' is an insertion indicator.
'skating area' becomes 'rink' (I've seen this before).
'der' enclosing 'rink' is 'DRINKER'.
Can you help me to learn more?
(Other definitions for drinker that I've seen before include "Consumer of liquid, probably alcohol" , "Inebriate" , "Tippler" , "Imbiber, toper" .)