Jane -, third wife of Henry VIII (7)
I believe the answer is:
seymour
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">jane</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(Jane Seymour, third wife of Henry VIII)</span><br/ ><br/ >'<span class="explanation-format__original">third wife of henry viii</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for seymour that I've seen before include "15 [JANE], one of the wives" , "See 15" , "Jane - - , Edward VI's mother" , "Jane -, third wife of Henry VIII" , "Henry VIII's wife Jane" .)