Where lawyers gather among Poles (4)
I believe the answer is:
inns
'where lawyers' is the definition.
The definition suggests a singular noun but the answer is a plural noun.
'gather among poles' is the wordplay.
'gather' becomes 'in' ('in' can mean to gather produce when farming).
'among' is a charade indicator (letters next to each other).
'poles' becomes 'ns' (North and South poles).
'in'+'ns'='INNS'
Can you help me to learn more?
(Other definitions for inns that I've seen before include "Old hostelries or pubs" , "Roadhouses or courthouses" , "More than one pub" , "Bars" , "Drinking places (frequented by barristers?)" .)