British lord lines up drink (5)
I believe the answer is:
elgin
'british lord' is the definition.
The definition suggests a singular noun which matches the answer.
'lines up drink' is the wordplay.
'lines up' becomes 'el' (I can't explain this - if you can you should believe this answer much more).
'drink' becomes 'gin' (gin is an alcoholic drink).
'el'+'gin'='ELGIN'
Can you help me to learn more?
(Other definitions for elgin that I've seen before include "Sculpture collector" , "Parthenon marbles remover" , "One carrying off temple sections" , "Scottish earl who took statues from the Parthenon" , "The -- Marbles (British Museum)" .)