Grain coming from a tropic island (5)

I believe the answer is:

capri

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'island' is the definition.
(Italian island)

I don't understand how the rest of the clue works.

(Other definitions for capri that I've seen before include "I carp about the island" , "found in Tyrrhenian location" , "Island near Naples" , "Romantic Isle in Bay of Naples" , "Italian isle" .)

I've seen this clue in The Globe and Mail.

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