Start liking (4,2)
I believe the answer is:
warm to
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">start liking</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 warm to that I've seen before include "Grow to like or appreciate" , "View favourably" .)