Crossword Genius

Making something hereditary with sailor (10)

Ross

I believe the answer is:

generating

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'making' is the definition.
(generating is a kind of making)

'hereditary with sailor' is the wordplay.
'hereditary' becomes 'gene' (I can't justify this - if you can you should believe this answer much more).
'with' means one lot of letters go next to another.
'sailor' becomes 'rating' (British term for a naval enlisted man).
'gene'+'rating'='GENERATING'

'something' is the link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?

I've seen this clue in The Daily Express.
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