Crossword Genius

Notes about mollusc one cooked as tribute to sailor (7,6)

Ross

I believe the answer is:

nelsons column

I'm a little stuck... Click here to teach me more about this clue!

'notes about mollusc one cooked as tribute' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'sailor' is the wordplay.
I cannot quite see how this works, but
'sailor' could be 'nelson' (I've seen this before) and 'nelson' is found in the answer.
This explanation may well be incorrect...

'to' acts as a link.

Can you help me to learn more?

(Other definitions for nelsons column that I've seen before include "formed up in square" , "monument" , "sailor's memorial" , "Central London landmark" .)

I've seen this clue in The Guardian.
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