Crossword Genius

In remote tax haven, they say, shedding crocodile tears, perhaps? (6)

Ross

I believe the answer is:

caiman

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'in' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Another definition for caiman that I've seen is " reptile".)

I've seen this clue in The Irish Times.
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