However to answer your question, on a controller point of view there is no PT at pawnee on the approach plate therefore the controller does not expect you to enter any kinda of maneuver but enter a gentle right turn of the 180 radial to join the 5 dme arc n arc north.
Even though the arc is 4.5 DME? That's the problem, you have to PAWNE at 5 DME, then fly the arc at 4.5 DME. It wasn't designed to be joined from the north.