Weapon gives sock to tobacco holder (8)
I believe the answer is:
blowpipe
'weapon' is the definition.
(I've seen this before)
'sock to tobacco holder' is the wordplay.
'sock' becomes 'blow' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to tobacco holder' becomes 'pipe' (I've seen this in another clue).
'blow'+'pipe'='BLOWPIPE'
'gives' is the link.
Can you help me to learn more?
(Other definitions for blowpipe that I've seen before include "Through which a poisoned dart is forced" , "Poison-dart weapon" , "Tubular weapon" , "Tube for hurling darts" , "Weapon shooting darts" .)