One of the Redgraves (7)
I believe the answer is:
vanessa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">one of the redgraves</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for vanessa that I've seen before include "Girl's name; red admiral, painted lady genus" , "Red admiral butterfly" , "Girl's name - butterfly genus" .)