Crossword Genius

Muses maybe occasionally during Indian tea (4)

Ross

I believe the answer is:

nine

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'indian tea' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'muses maybe occasionally during' is the wordplay.
I cannot really see how this works, but
'during' could be 'in' (I've seen this in other clues) and 'in' is found in the answer.
The remaining letters 'ne' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for nine that I've seen before include "One over the eight" , "Square root of 81" , "It's dialled three times in an emergency" , "Short time for a wonder" , "A perfect square" .)

I've seen this clue in The Telegraph.
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