Crossword Genius

We hear whisky's to go up (4)

Ross

I believe the answer is:

rise

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

'to go up' is the definition.
(rising is a kind of going up)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for rise that I've seen before include "Pay increase" , "Soar" , "Rebel" , "hike" , "To swell (bread)" .)

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