Smelly? No different, in a ceremonious way (8)

I believe the answer is:

solemnly

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'in a ceremonious way' is the definition.
Both the answer and definition are adverbs. Perhaps you can see a link between them that I can't see?

'smelly? no different' is the wordplay.
'different' is an anagram indicator (letters placed in a different order).
'smelly'+'no'='smellyno'
'smellyno' anagrammed gives 'SOLEMNLY'.

Can you help me to learn more?

(Other definitions for solemnly that I've seen before include "Gravely and sedately" , "in formal and dignified way" , "In a formal and dignified manner" .)

I've seen this clue in The Daily Express.

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