Bury born prisoner (8)
I believe the answer is:
internee
'prisoner' is the definition.
(I know that internee is a type of prisoner)
'bury born' is the wordplay.
'bury' becomes 'inter' (to inter is to put into the ground).
'born' becomes 'nee' ('nee' is 'born' in French).
'inter'+'nee'='INTERNEE'
(Other definitions for internee that I've seen before include "Imprisoned person" , "suspected terrorist" , "One is held without trial" , "Suspect held" , "Prisoner of war living in armed camp or prison" .)