What does the cryptic crossword clue "Extract of malt is an essential for some infusions (7)" mean?

The definition is "infusions". The wordplay uses a hidden word. Hidden in (‘extract of’) malT IS AN ESsential The answer is TISANES.

Extract of malt is an essential for some infusions (7)

Independent Cryptic #11693 | 22 Across | 2024-04-02 flower