Old railwaymen accommodated by inn, just outside Bury (5)
I believe the answer is:
inurn
'bury' is the definition.
(I've seen this before)
'old railwaymen accommodated by inn just outside' is the wordplay.
'old railwaymen' becomes 'NUR' (National Union of Railwaymen).
'accommodated by' means one lot of letters goes inside another.
'just outside' means to remove the middle letters (just the outside letters of the word).
'inn' with its centre taken out is 'in'.
'nur' put into 'in' is 'INURN'.
(Other definitions for inurn that I've seen before include "Bury" , "secure The Ashes" , "put in vessel" .)