He shoots at the woodcock on the right (6)
I believe the answer is:
sniper
'he shoots' is the definition.
'the woodcock on the right' is the wordplay.
I cannot quite see how this works, but
'right' could be 'r' (common abbreviation) and 'r' is found in the answer.
The remaining letters 'snipe' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'at' acts as a link.
Can you help me to learn more?
(Other definitions for sniper that I've seen before include "Concealed sharpshooter" , "He shoots from a hidden position" , "Person making sly critical remarks, like gunman from hiding?" , "Hidden gunman" , "Good shot" .)