Cut furrows round economist's factory, also (4)
I believe the answer is:
mill
'cut furrows round' is the definition.
(as in milling the edges of a coin)
I don't understand how the remainder of the clue works.
(Other definitions for mill that I've seen before include "works on > race" , "Flour factory" , "(Pepper) grinder" , "Grind (flour)" , "English philosopher and economist, d. 1873" .)