In the stable, are arranging to hide the gun (7)
I believe the answer is:
firearm
'the gun' is the definition.
(firearm is a kind of gun)
'in the stable are arranging' is the wordplay.
'in' indicates putting letters inside.
'the stable' becomes 'firm' (I've seen this before).
'arranging' indicates anagramming the letters.
'are' is an anagram of 'ear'.
'firm' going around 'ear' is 'FIREARM'.
'to hide' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for firearm that I've seen before include "Pistol, rifle or gun" , "Colt perhaps" , "dangerous weapon" , "piece" , "One's fired" .)