Did some twisting - the result is injury (5)
I believe the answer is:
wound
'is injury' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for wound that I've seen before include "Turned about" , "Twisted; injury" , "Injury to living tissue" , "injury to reputation" , "As bandage was" .)