Author O'Brien
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">author o'brien</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 edna that I've seen before include "Female Dane, oddly" , "___ O'Brien, Irish novelist, b. 1930" , "Barry Humphries' Dame" , "Dame - Everage, housewife-superstar" , "- O'Brien, Irish writer" .)