Crossword clue: the act of pouring off a clear liquor gently from its lees or sediment, or from one vessel into another.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
the act of gently pouring off a clear liquor (as from its original bottle) without disturbing the lees