Beer almost completed in a manner of speaking? (6)
I believe the answer is:
jargon
'a manner of speaking?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'beer almost completed' is the wordplay.
'beer' becomes 'jar' (I've seen this before).
'almost completed' becomes 'gon' (I am not sure about this - if you are sure you should believe this answer much more).
'jar'+'gon'='JARGON'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for jargon that I've seen before include "Argot" , "Specialist language" , "Specialised terminology" , "Particular language of a particular group" , "professional words" .)