Finish with some skill (4)

I believe the answer is:

kill

I'm a little stuck... Click here to teach me more about this clue!

'finish' is the definition.
(thesaurus)

I cannot understand how the rest of the clue works.

(Other definitions for kill that I've seen before include "Deprive of life" , "Prey" , "Cause to die" , "Do away with" , "Put an end to" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app