Hurt and disable (4)
I believe the answer is:
'hurt and disable' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for maim that I've seen before include "Wound and permanently disfigure" , "Disable, lame" , "Wound so that part of body is permanently damaged" , "Wound or injure, disable" , "'Disable, mutilate (4)'" .)