Plunder Winchester for example (5)
I believe the answer is:
rifle
This clue is a double definition.
'plunder' is the first definition.
(I know that plunder can be written as rifle)
'winchester for example' is the second definition.
(I know that Winchester is a type of rifle)
(Other definitions for rifle that I've seen before include "Strip - firearm" , "Search and rob - with long gun?" , "Root" , "Gun - steal" , "Firearm - plunder" .)