Spoils historical period carriage (7)
I believe the answer is:
haulage
'carriage' is the definition.
(thesaurus)
'spoils historical period' is the wordplay.
'spoils' becomes 'haul' (I've seen this in another clue).
'historical period' becomes 'age' (I've seen this before).
'haul'+'age'='HAULAGE'
(Other definitions for haulage that I've seen before include "Commercial transport of goods" , "Road transport" , "Transport business" , "Commercial transportation of goods" , "Transportation of heavy goods" .)