Felt concern (5)
I believe the answer is:
cared
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">felt concern</span>' is the definition.<br/ ><span class="explanation-format__explanation">('care' can be a synonym of 'feel concern')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cared that I've seen before include "had feelings" , "Was concerned" , "Tended" , "Felt affection (for)" , "Felt concern or interest" .)