Quantity of American wine at one gathering of readers? (8)
I believe the answer is:
literati
'gathering of readers?' is the definition.
The definition suggests a plural noun which matches the answer.
'quantity of american wine at one' is the wordplay.
'quantity of american wine' becomes 'liter' (I can't explain this - if you can you should give a lot more credence to this answer).
'one' becomes 'i' (Roman numeral).
'liter'+'at'+'i'='LITERATI'
Can you help me to learn more?
(Other definitions for literati that I've seen before include "group of learned people" , "Bookish types" , "Great minds" , "scholars" , "Literary intelligentsia" .)