Crossword Genius

Not able to hear fade-out? (4)

Ross

I believe the answer is:

deaf

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

'not able to hear' is the definition.
I can't tell whether this defines the answer.

'fade-out?' is the wordplay.
'out?' is an anagram indicator (out can mean wrong or inaccurate).
'fade' is an anagram of 'DEAF'.

Can you help me to learn more?

(Other definitions for deaf that I've seen before include "Unable to pick up" , "Audibly challenged" , "Rudely confident" , "Refusing to hear (entreaty)" , "Unable to hear" .)

I've seen this clue in The Guardian.
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