Crossword Genius

Reminder for November to turn up moonshine (9)

Ross

I believe the answer is:

poppycock

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

'moonshine' is the definition.
(thesaurus)

'reminder for november to turn up' is the wordplay.
I cannot really see how this works, but
'turn up' could be 'cock' (I've seen this in other clues) and 'cock' is found within the answer.
The remaining letters 'poppy' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for poppycock that I've seen before include "Scarlet flower on male bird? Nonsense" , "Rot!" , "Balderdash" , "Red flower on rooster? That's nonsense" .)

I've seen this clue in The Telegraph.
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