Mixed feelings (11)
I believe the answer is:
ambivalence
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mixed feelings</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 ambivalence that I've seen before include "conflicting emotions" , "Mixed feelings (E, not Y)" , "being of two minds" , "uncertainty" .)