Ban covetousness? Not entirely (4)

I believe the answer is:

veto

'ban' is the definition.
(veto can mean a ban or prohibition on something)

'covetousness? not entirely' is the wordplay.
'not entirely' indicates a hidden word.
'VETO' is hidden within 'covetousness'.

(Other definitions for veto that I've seen before include "Right of rejection" , "Blocking vote" , "Refuse to endorse" , "Disallow" , "Vote to block a decision" .)

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

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