Hypocritical talk about administrative division (6)
I believe the answer is:
canton
'administrative division' is the definition.
(canton is a kind of administrative division)
'hypocritical talk about' is the wordplay.
'hypocritical talk' becomes 'cant' (I've seen this before).
'about' becomes 'on' (as in a book 'on' a certain topic).
'cant'+'on'='CANTON'
(Other definitions for canton that I've seen before include "Political district of Switzerland" , "European territory" , "part of Europe" , "It cannot be in Switzerland" , "Old 5 [CHINESE] city" .)