Tories out to cut benefit — a “restructuring” (11)
I believe the answer is:
perestroika
'restructuring' is the definition.
(I know that restructuring can be written as Perestroika)
'tories out to cut benefit a' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'to cut' means one lot of letters goes inside another (some letters cut their way into a word).
'benefit' becomes 'perk' (perk is a kind of benefit).
'tories' anagrammed gives 'estroi'.
'estroi' going into 'perk' is 'perestroik'.
'perestroik'+'a'='PERESTROIKA'
(Other definitions for perestroika that I've seen before include "Reform of the Soviet political and economic system in the 1980s" , "Gorbachev's reform policy" , "Reform policy (in Soviet Union)" , "1980s Soviet economic policy" , "Gorbachov's policy" .)