Buccaneer's vessel?

I believe the answer is:

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'vessel?' is the definition.
(I've seen this before)

'buccaneer's' is the wordplay.
'CAN' is hidden in amongst the letters.
But, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for can that I've seen before include "John" , "Cooler" , "has power" , "Preserve fruit" , "prison" .)

I've seen this clue in the Evening Standard.

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