Muscat dome rebuilt to required specifications (6-4)

I believe the answer is:

custom-made

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'required specifications' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives occasionally mean the same thing.

'muscat dome rebuilt' is the wordplay.
'rebuilt' indicates an anagram.
'muscat'+'dome'='muscatdome'
'muscatdome' anagrammed gives 'CUSTOM-MADE'.

'to' is the link.

Can you help me to learn more?

(Another definition for custom-made that I've seen is " Built to order".)

I've seen this clue in The Guardian.

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