Female monarch (5)
I believe the answer is:
queen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">female monarch</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for queen that I've seen before include "Good - - Bess" , "She commands" , "powerful man on board" , "Elizabeth, Victoria or Anne, for example" , "Regina" .)