Echo stops lively chat with barmen in small room (11)
I believe the answer is:
antechamber
'small room' is the definition.
(I've seen this before)
'echo stops lively chat with barmen' is the wordplay.
I cannot quite see how this works, but
'echo' could be 'e' (phonetic alphabet: alpha, bravo, charlie etc.) and 'e' is found in the answer.
an anagram of 'chat' is 'tcha' which is located in the left over letters.
an anagram of 'barmen' is 'anmber' which is located in the remaining letters.
No letters remain.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for antechamber that I've seen before include "Small room leading to a main one" , "Small entrance room" , "Reception area" , "External room" , "Small room before a larger one" .)