Crossword Genius

Finally create one model in bone and rubber (7)

Ross

I believe the answer is:

ebonite

'rubber' is the definition.
(I know that ebonite is a type of rubber)

'finally create one model in bone' is the wordplay.
'finally' says to take the final letters.
'one' becomes 'i' (Roman numeral).
'model' becomes 't' (Ford Model T car).
'in' indicates putting letters inside.
The last letter of 'create' is 'e'.
'i'+'t'='it'
'it' put inside 'bone' is 'bonite'.
'e'+'bonite'='EBONITE'

'and' acts as a link.

(Other definitions for ebonite that I've seen before include "Vulcanite" , "something rubbery" , "Rubbery material" , "Bee on it (anag.)" , "vulcanised rubber" .)

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