Scottish children getting drunk in bars (6)
I believe the answer is:
bairns
'scottish children' is the definition.
(I've seen this before)
'drunk in bars' is the wordplay.
'drunk' indicates anagramming the letters.
'in'+'bars'='inbars'
'inbars' is an anagram of 'BAIRNS'.
'getting' is the link.
(Other definitions for bairns that I've seen before include "Scottish children with brains" , "Scottish wee ones" , "Children, in Scotland" .)