Cold injury (9)
I believe the answer is:
frostbite
'cold injury' is the definition.
(I know that frostbite is a type of cold injury)
This is all the clue.
(Other definitions for frostbite that I've seen before include "Extremely dangerous cold" , "Destruction of tissue caused by extreme cold" , "Injury from extreme cold" , "Injury arising from intense cold" , "Arctic danger" .)