Hurried to pillage and search for plunder (7)
I believe the answer is:
ransack
'search for plunder' is the definition.
(I've seen this in another clue)
'hurried to pillage' is the wordplay.
'hurried' becomes 'ran' (running is a kind of hurrying).
'to pillage' becomes 'sack' (I've seen this in another clue).
'ran'+'sack'='RANSACK'
'and' acts as a link.
(Other definitions for ransack that I've seen before include "Search thoroughly and roughly" , "Search thoroughly - pillage" , "Rummage, rifle" , "Turn upside down in searching" , "Search, leaving no stone unturned" .)