Ransacked in Roma: pie shops (7)
I believe the answer is:
emporia
'shops' is the definition.
(I've seen this before)
'ransacked in roma pie' is the wordplay.
'ransacked in' indicates an anagram.
'roma'+'pie'='romapie'
'romapie' anagrammed gives 'EMPORIA'.
(Other definitions for emporia that I've seen before include "Large retail outlets" , "Large stores" , "I'm a rope (anag)" , "large-scale marketing operations" , "big stores" .)