Crossword Genius

Renege drinking liquor, one penny for inside dodgy deal (3,2,1,4)

Ross

I believe the answer is:

pig in a poke

I'm a little stuck... Click here to teach me more about this clue!

'deal' is the definition.
(thesaurus)

'renege drinking liquor one penny for inside dodgy' is the wordplay.
I cannot quite understand how this works, but
'liquor' could be 'gin' (gin is a kind of liquor) and 'gin' is found in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'penny' could be 'p' (short for pence) and 'p' is located in the answer.
The remaining letters 'apoke' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Another definition for pig in a poke that I've seen is " Blind purchase".)

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