Diadem (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">diadem</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tiara that I've seen before include "Jewelled coronet" , "Jewelled headband" , "Ornamental headpiece" , "Ornamental head band" , "Women's head ornament" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">diadem</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for crown that I've seen before include "Visible part of a tooth" , "Symbol of monarchy" , "Old coin; whack on head" , "Coronet" , "Monarch's headgear" .)