With skill
I think it could be either:
'with skill' is the definition.
(thesaurus)
This is all the clue.
(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" .)
'with skill' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ably that I've seen before include "well" , "In proficient manner" , "In a competent fashion" , "In capable manner" , "With competence" .)