Centre for cost moved to a large region (7)
I believe the answer is:
expanse
'large region' is the definition.
'centre for cost moved to a' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'an' and 'an' is located in the answer.
This explanation may well be incorrect...
(Other definitions for expanse that I've seen before include "Wide area of open land or space" , "Swathe" , "Stretch - extent" , "reach" , "Range - spread" .)