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Product of two wild species; got nil solution! (6)

Ross

I believe the answer is:

tiglon

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'product' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'two wild species got nil solution' is the wordplay.
'got nil' can be anagrammed to 'TIGLON'.
However, I am not sure how this is indicated.

'of' is the link.

Can you help me to learn more?

(Another definition for tiglon that I've seen is " Cross".)

I've seen this clue in the Sydney Morning Herald.
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