For a Scot, the corn is high (6)

I believe the answer is:

hamish

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'for a scot' is the definition.
(common Scottish name)

'corn is high' is the wordplay.
'corn' becomes 'ham' (I can't justify this - if you can you should believe this answer much more).
'high' becomes 'h' (abbreviation).
'ham'+'is'+'h'='HAMISH'

'the' acts as a link.

Can you help me to learn more?

(Another definition for hamish that I've seen is " Scottish boy's name".)

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