Tory squeezing social worker creates political division (6)
I believe the answer is:
canton
'political division' is the definition.
(I know that canton is a type of first-level administrative country subdivision)
'tory squeezing social worker' is the wordplay.
'tory' becomes 'con' (abbreviation for conservative).
'squeezing' means one lot of letters goes inside another (inserted letters are squeezed by others).
'social worker' becomes 'ant' (ants are social insects).
'con' enclosing 'ant' is 'CANTON'.
'creates' is the link.
(Other definitions for canton that I've seen before include "European territory" , "Old 5 [CHINESE] city" , "port in China" , "Divison of Switzerland" , "Political region in Switzerland" .)