Tudor queen (4)
I believe the answer is:
mary
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tudor queen</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 mary that I've seen before include "a religious icon" , "See 2" , "feature of 21/23 [NATIVITY SCENE]" , "Disney film with Julie Andrews" , "O'Rourke, Harney and McAleese" .)