Feel snout working when using it? (4,5)

I believe the answer is:

nose flute

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'using it?' is the definition.
I can't judge whether this definition defines the answer.

'feel snout working' is the wordplay.
'working' is an anagram indicator.
'feel'+'snout'='feelsnout'
'feelsnout' with letters rearranged gives 'NOSE-FLUTE'.

'when' acts as a link.

Can you help me to learn more?

(Other definitions for nose flute that I've seen before include "Asian wind instrument - use Teflon (anag)" , "South Sea Islands instrument" , "South Sea instrument - use Teflon (anag)" , "pipe" .)

I've seen this clue in The Times.

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