See you shortly in conversation with Penny? (6)

I believe the answer is:

copper

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'penny?' is the definition.
(copper is a kind of penny)

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

(Other definitions for copper that I've seen before include "A reddish-brown metal" , "Element; butterfly" , "Metal, Cu" , "Metal - washing-machine?" , "Old policeman or reddish metal" .)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.

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