Befitting a monarch (5)
I believe the answer is:
royal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">befitting a monarch</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for royal that I've seen before include "- blue; - assent" , "like The Grand Old Duke of York, perhaps" , "Like Priam" , "Shade of blue" , "measure of paper" .)