In art, imaginatively, it means to draw (5)
I believe the answer is:
train
'draw' is the definition.
(I know that drag is the is a more specific form of the action of train.)
'in art imaginatively it means' is the wordplay.
'in art' anagrams to 'TRAIN'.
Though, I am not sure how this is indicated.
'to' is the link.
Can you help me to learn more?
(Other definitions for train that I've seen before include "Number of eg carriages in a line" , "Series (of gears); coach" , "School, educate" , "Teach; series of gears" , "Line of railway cars with locomotive" .)