Crossword Genius

North American sons all finally pay through the nose (7)

Ross

I believe the answer is:

nasally

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

'through the nose' is the definition.
I can't tell whether this defines the answer.

'north american sons all finally pay' is the wordplay.
'north american' becomes 'na'.
'sons' becomes 's'.
'finally' indicates one should take the final letters.
The final letter of 'pay' is 'y'.
'na'+'s'+'all'+'y'='NASALLY'

Can you help me to learn more?

(Another definition for nasally that I've seen is " with a twang in the voice".)

I've seen this clue in The Independent.
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