What does the cryptic crossword clue "Denies one's corking drinks (7)" mean?

The definition part of the clue is "Denies". The answer is DISOWNS. Explanation: I’S (One’s) in DOWNS (drinks)

Denies one's corking drinks (7)

Guardian Puzzle #28169 1 Across 2020-06-25

Definition

Denies

Explanation

I’S (One’s) in DOWNS (drinks)

Source: Fifteensquared

Answer

DISOWNS