Engineer made cellos and a smaller version (5,5)

I believe the answer is:

scale model

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'a smaller version' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'engineer made cellos' is the wordplay.
'engineer' indicates anagramming the letters.
'made'+'cellos'='madecellos'
'madecellos' anagrammed gives 'SCALE MODEL'.

'and' is the link.

Can you help me to learn more?

(Other definitions for scale model that I've seen before include "Perhaps an orrery" , "proportional representation" , "Smaller representation" , "faithful representation" , "Reproduction at reduced size" .)

I've seen this clue in The Guardian.

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