Plunder, ransack (4)
I believe the answer is:
loot
I believe this clue is a double definition.
'plunder' is the first definition.
(I know that plunder can be written as loot)
'ransack' is the second definition.
(I know that ransack can be written as loot)
(Other definitions for loot that I've seen before include "Prize" , "Tool found among plunder" , "Steal (goods); money" , "familiar officer" , "Burglar's takings - pillage" .)