Minute digit? (6,3)

I believe the answer is:

little toe

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'minute digit?' is the definition.
'little toe' can be an answer for 'digit?' (I have seen 'Small digit ' mean 'little toe' so perhaps 'digit' could also mean 'little toe'). I am not sure about the 'minute' bit.

'minute digit?' is the wordplay.
'minute' becomes 'little' (similar in meaning).
'digit?' becomes 'toe' (digit on a foot).
'little'+'toe'='LITTLE TOE'

Can you help me to learn more?

(Other definitions for little toe that I've seen before include "Tiniest foot digit" , "Lower extremity" , "Small digit" , "smallest digit" .)

I've seen this clue in the Sydney Morning Herald.

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