Tip sailor off for a weapon (3,6)
I believe the answer is:
air pistol
'a weapon' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'tip sailor off' is the wordplay.
'off' indicates an anagram.
'tip'+'sailor'='tipsailor'
'tipsailor' with letters rearranged gives 'AIR PISTOL'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for air pistol that I've seen before include "Gun firing pellet by non-explosive means" , "One shot" , "shooter" .)