Women drunk beer: he worked on bars (5)
I believe the answer is:
weber
'he worked on bars' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'women drunk beer' is the wordplay.
'women' becomes 'w' (standard abbreviation).
'drunk' is an anagram indicator.
'beer' with letters rearranged gives 'eber'.
'w'+'eber'='WEBER'
Can you help me to learn more?
(Other definitions for weber that I've seen before include "German composer of Der Freischutz" , "physics unit" , "Composer; physicist" , "German musician" , "Founder of the German Romantic school of opera, d. 1826" .)