Darwin revised good artwork (7)
I believe the answer is:
drawing
'artwork' is the definition.
(I know that drawing is a type of artwork)
'darwin revised good' is the wordplay.
'revised' indicates anagramming the letters.
'good' becomes 'g' (abbreviation).
'darwin' is an anagram of 'drawin'.
'drawin'+'g'='DRAWING'
(Other definitions for drawing that I've seen before include "Sketching with a pencil, pen or crayon" , "Pencilled picture" , "A sketch or design" , "Picture, sketch" , "Enticing" .)