Bury one, alternatively, upcountry (8)
I believe the answer is:
interior
'upcountry' is the definition.
('interior' can be a synonym of 'upcountry')
'bury one alternatively' is the wordplay.
'bury' becomes 'inter' (I've seen this before).
'one' becomes 'i' (Roman numeral).
'alternatively' becomes 'or'.
'inter'+'i'+'or'='INTERIOR'
(Other definitions for interior that I've seen before include "Core" , "The inside of anything" , "The heart" , "Inner; inland" , "Inside of a building" .)