Crossword Genius

Old-fashioned and formal about material matters (6)

Ross

I believe the answer is:

stuffy

I'm a little stuck... Click here to teach me more about this clue!

'old-fashioned' is the definition.
(I've seen this before)

'formal about material matters' is the wordplay.
I cannot really see how this works, but
'material' could be 'stuff' (synonyms) and 'stuff' is located in the answer.
A single letter 'y' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'and' is the link.

Can you help me to learn more?

(Other definitions for stuffy that I've seen before include "Airless - humourless" , "Airless - pompous" , "needing to be aired" , "Lacking ventilation; narrow-minded" , "Staid - airless" .)

I've seen this clue in the Evening Standard.
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