Holder or carrier (6)
I believe the answer is:
bearer
I believe this is a double definition.
'holder' is the first definition.
(bearer is a kind of holder)
'carrier' is the second definition.
(I know that carrier can be written as bearer)
(Other definitions for bearer that I've seen before include "One presenting cheque" , "He carries something, stretcher or news" , "One who carries, maybe a coffin" , "Mourner carrying the coffin at a funeral" , "agent" .)