Crossword Genius

Sad aliens, sadly, talked through their noses (9)

Ross

I believe the answer is:

nasalised

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'talked through their noses' is the definition.
I can't judge whether this defines the answer.

'sad aliens sadly' is the wordplay.
'sadly' is an anagram indicator.
'sad'+'aliens'='sadaliens'
'sadaliens' with letters rearranged gives 'NASALISED'.

Can you help me to learn more?

(Other definitions for nasalised that I've seen before include "Used nose to utter" , "For speech, snitch used" .)

I've seen this clue in The Independent.
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