Burly seamen, I fancy, may be seen around deep vessel of note (6,9)

'burly seamen i fancy may be seen' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'deep vessel of note' is the wordplay.
I cannot quite see how this works, but
'deep' could be 'low' (similar in meaning) and 'low' is located in the answer.
'vessel' could be 'submarine' (submarine is a kind of vessel) and 'submarine' is present in the answer.
'note' could be 'e' (musical note) and 'e' is located in the answer.
This explanation may well be incorrect...

'around' is the link.

Can you help me to learn more?