What does the cryptic crossword clue "Quantity of leaf cut up in brew (9)" mean?

The definition is "Quantity". The wordplay uses an anagram. anagram of LEAF + CUT + UP = TEACUPFUL; definition: "Quantity" The answer is TEACUPFUL.

Quantity of leaf cut up in brew (9)

Independent Cryptic #11979 | 14 Down | 2025-03-01 flower