Concerned with bones in big duck? (6)

I believe the answer is:

osteal

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'concerned with bones' is the definition.
I know that 'bones' relates to this answer.

'big duck?' is the wordplay.
'big' becomes 'os'.
'duck?' becomes 'teal' (teal is a type of duck).
'os'+'teal'='OSTEAL'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for osteal that I've seen before include "Bony" , "of bones" , "made of bone" , "Relating to bone - so late (anag)" , "skeleton may be thus described" .)

I've seen this clue in the Sydney Morning Herald.

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