With skill
I think it could be either:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">with skill</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for well that I've seen before include "Underground source" , "Source; in good health" , "four-letter word repeated in Shakespeare comedy" , "31 [SPRING]" , "Lift-shaft" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">with skill</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ably that I've seen before include "well" , "In proficient manner" , "In a competent fashion" , "In capable manner" , "With competence" .)