"Vertigo" star (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">vertigo star</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 stewart that I've seen before include "Jackie, Rod or Patrick" , "Man" , "Scottish house" , "Royal family" , "Northern clan" .)