So swivel round when speaking for a glass of this? (9)
I believe the answer is:
sauternes
This could be a double definition.
'so swivel round' is the first definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'speaking for a glass of this?' is the second definition.
The definition suggests a singular noun which matches the answer.
'when' is the link.
(Other definitions for sauternes that I've seen before include "Sweet French wine" , "Sweet white wine" , "A sweet Bordeaux" .)