To a small degree (8)
I believe the answer is:
slightly
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">to a small degree</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 slightly that I've seen before include "To a small degree" , "Quite!" , "little bit" , "To a small extent" , "Mildly" .)