A little belligerent ombudsman in Bury (6)

I believe the answer is:

entomb

'bury' is the definition.
(I know that bury can be written as entomb)

'a little belligerent ombudsman in' is the wordplay.
'a little' indicates the answer is hidden within the clue.
'ENTOMB' is hidden within 'belligerent ombudsman in'.

(Other definitions for entomb that I've seen before include "cover late arrival" , "to finish Aida, for example" , "Place in a grave" , "Incarcerate" , "put away body" .)

I've seen this clue in The Everyman puzzle in The Observer.

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