System of writing in code, Scottish one (6)
I believe the answer is:
pinyin
'system of' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'in code scottish one' is the wordplay.
'in' is an insertion indicator.
'code' becomes 'pin' (a PIN number is a 4-digit code).
'scottish' becomes 'ny' (I can't explain this - if you can you should give a lot more credence to this answer).
'one' becomes 'i' (Roman numeral).
'ny'+'i'='nyi'
'pin' placed around 'nyi' is 'PINYIN'.
'writing' is the link.
Can you help me to learn more?
I've seen this clue in The Times.
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