If I see your pic correctly, that is the low pressure suction hose from the bottom of the tank to the suction side of the pump. I assume it is hitting the wheel (tire?) just off the edge of the pic.
Good things working in your favor:
no high pressure
relatively cheap to fix
Things working against you:
in order to fix/change hose, you will have to drain the tank/loss of fluid
tight quarters to work in
might have to pull the hoe off to have room to work
You can just change to hose, hopefully with a shorter piece that won't reach the wheel.
You cut the hose at the damaged portion, and splice it back together with a double ended hose barb & clamps.
You could also use two 90 degree hose barbs to allow a tighter, closer to the pump "U" bend, getting it further from the wheel.
These pics show a 90 degree elbow in that line, (ignore the arrows) and another type of hose (Tygon with nylon mesh) that bends tighter/easier than conventional hydraulic hose