Unusual tip re corn: grow in alternating rows (9)

I believe the answer is:

intercrop

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'grow in alternating rows' is the definition.
I can't tell whether this defines the answer.

'unusual tip re corn' is the wordplay.
'unusual' indicates anagramming the letters.
'tip'+'re'+'corn'='tiprecorn'
'tiprecorn' is an anagram of 'INTERCROP'.

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(Another definition for intercrop that I've seen is " farm produce".)

I've seen this clue in The Times.

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