Crossword Genius

Small measure girl’s taken to cover new term (10)


I believe the answer is:


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'small measure' is the definition.
(small measurement)

'to cover new term' is the wordplay.
'to' becomes 'millie' (I can't explain this - if you can you should give a lot more credence to this answer).
'cover' indicates putting letters inside.
'new' indicates anagramming the letters.
'term' anagrammed gives 'metr'.
'millie' enclosing 'metr' is 'MILLIMETRE'.

'girl's taken' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

I've seen this clue in The Times.
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