Cordial dog lifted leg by an upright? (8)

I believe the answer is:

anisette

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'cordial' is the definition.
(I know that anisette is a type of cordial)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for anisette that I've seen before include "[APERITIF]" , "Liqueur; tetanise (anag.)" , "Herb-flavoured liqueur" , "Liqueur flavoured with seeds" , "Aromatic cordial drink" .)

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

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