Extraordinary, a dynasty containing every character (7)

I believe the answer is:

amazing

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'extraordinary' is the definition.
(thesaurus)

'a dynasty containing every character' is the wordplay.
'dynasty' becomes 'ming' (Ming dynasty of China).
'containing' is an insertion indicator.
'every character' becomes 'az' (I can't justify this - if you can you should give a lot more credence to this answer).
'ming' placed around 'az' is 'mazing'.
'a'+'mazing'='AMAZING'

Can you help me to learn more?

(Other definitions for amazing that I've seen before include "Very surprising, remarkable" , "Sensational" , "Very impressive" , "Excellent; surprising" , "Stunning, surprising" .)

I've seen this clue in The Daily Express.

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