Shooting a guy out with a devious plan (7)
I believe the answer is:
gunplay
'shooting a guy' is the definition.
'gunplay' can be an answer for 'shooting' (I've seen this before). I'm not sure about the 'a guy' bit.
'out with a devious plan' is the wordplay.
'out' becomes 'guy' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' means one lot of letters goes inside another.
'a devious' indicates an anagram.
'plan' with letters rearranged gives 'npla'.
'guy' placed around 'npla' is 'GUNPLAY'.
Can you help me to learn more?
(Other definitions for gunplay that I've seen before include "use of weapons" , "Shooting" , "arms movements?" .)