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