Withdraw from contest with a slight wound (7)
I believe the answer is:
scratch
'slight wound' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for scratch that I've seen before include "Slight wound; score" , "given no advantage" , "haphazard a team?" , "Receiving no allowance < , ready" , "not much of a handicap" .)