George being one involved in gun conspiracy (9,5)
I believe the answer is:
automatic pilot
'george' is the definition.
(George can informally mean a plane's autopilot sys)
'gun conspiracy' is the wordplay.
'gun' becomes 'automatic' (automatic is a kind of gun).
'conspiracy' becomes 'pilot' (I am not sure about this - if you are sure you should believe this answer much more).
'automatic'+'pilot'='AUTOMATIC PILOT'
'being one involved in' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for automatic pilot that I've seen before include "Device keeping aircraft on course" , "George" .)