Six litre beer for small townsman (8)
I believe the answer is:
villager
'small townsman' is the definition.
'villager' can be an answer for 'townsman' (thesaurus). I'm not certain of the 'small' bit.
'six litre beer' is the wordplay.
'six' becomes 'VI' (Roman numerals).
'litre' becomes 'L' (abbreviation).
'beer' becomes 'lager' (type of beer).
'vi'+'l'+'lager'='VILLAGER'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for villager that I've seen before include "Country dweller" , "Rural dweller" , "Small town dweller" , "One lives in a place smaller than a town" , "Denizen of a hamlet" .)