Former Russian politician revolting in style (7)
I believe the answer is:
yeltsin
'former russian politician' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'revolting in style' is the wordplay.
'revolting' is an anagram indicator.
'in'+'style'='instyle'
'instyle' with letters rearranged gives 'YELTSIN'.
Can you help me to learn more?
(Other definitions for yeltsin that I've seen before include "Boris -, former Russian president" , "Former leader" , "Russian statesman" , "Nineteen ninety's Russian president" , "Russian leader" .)