Russian reactionary (7)
I believe the answer is:
tsarist
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">russian reactionary</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tsarist that I've seen before include "Of emperors of old Russia" , "Russian royal supporter" , "Russian royalist" , "Bolshevik opponent" , "Russian monarchist" .)