Bygone ruler (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bygone ruler</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 tsar that I've seen before include "Rats (anag)" , "Once-powerful Russian" , "Russian ruler (S, not Z)" , "Word derived from Caesar, used by European rulers since 1547" , "Russian leader" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bygone ruler</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 czar that I've seen before include "person of great power" , "Pre-1917 Russian ruler" , "Despot" , "Russian emperor" , "policy coordinator" .)