Disable (4)
'disable' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for maim that I've seen before include "Wound, injure, harm" , "'Disable, mutilate (4)'" , "Wound and permanently disfigure" , "Injure and cripple" , "Cripple, mutilate" .)
'disable' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for incapacitate that I've seen before include "Prevent from functioning normally" , "Take power away from" , "Disable; disqualify (law)" .)