Seriously wound (4)
I believe the answer is:
maim
'seriously wound' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for maim that I've seen before include "Injure seriously, leaving permanent damage" , "Wound so that part of body is permanently damaged" , "Injure or harm severely" , "Wound and cripple" , "Injure and cripple" .)