What does the cryptic crossword clue "Drunk's wound wants a bit of cleansing (5)" mean?

The definition is "Drunk". The wordplay uses a deletion. OILED (deletion) = OILED; definition: "Drunk's" The answer is OILED.

Drunk's wound wants a bit of cleansing (5)

Guardian Cryptic #29139 | 16 Across | 2023-08-03 flower