Crossword Genius

Equally, at half time, it's not a hundred per cent (4)

Ross

I believe the answer is:

some

I'm a little stuck... Click here to teach me more about this clue!

'not a hundred per cent' is the definition.
I can't judge whether this defines the answer.

'equally at half time' is the wordplay.
'equally' becomes 'so' (I can't explain this - if you can you should give a lot more credence to this answer).
'at' says to put letters next to each other.
'half' indicates taking half.
'time' halved is 'me'.
'so'+'me'='SOME'

'it's' is the link.

Can you help me to learn more?

(Other definitions for some that I've seen before include "Several" , "An unspecified quantity, not all" , "Part" , "certain" , "Undefined number" .)

I've seen this clue in the Evening Standard.
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