Satisfied in peace, lifted beer bottle (10)
I believe the answer is:
methuselah
'bottle' is the definition.
Both the answer and definition are singular nouns.
Maybe there's an association between them I don't understand?
'satisfied in peace lifted beer' is the wordplay.
'satisfied' becomes 'met' ('meet' can be a synonym of 'satisfy').
'in' indicates putting letters inside.
'peace' becomes 'hush' (I can't explain this - if you can you should believe this answer much more).
'lifted' is a reversal indicator (going up in down clue).
'beer' becomes 'ale' (I've seen this before).
'ale' written backwards gives 'ela'.
'hush' going around 'ela' is 'huselah'.
'met'+'huselah'='METHUSELAH'
Can you help me to learn more?
(Other definitions for methuselah that I've seen before include "Large wine bottle - very long-lived man" , "Old man of the Bible" , "Old Testament patriarch (very old when he died!)" , "He lived 969 years (Gen.)" , "I'm an old man" .)