Mild aversion (8)
I believe the answer is:
distaste
'mild aversion' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for distaste that I've seen before include "lack of relish?" , "Feeling of dislike or aversion" , "Negative feeling" , "Is stated (anag.)" , "Feeling of dislike - unsavoury?" .)