What does the cryptic crossword clue "Tab here miscalculated drink (4,3)" mean?

The definition is "drink". The wordplay uses an anagram. anagram of TAB + HERE = HERBTEA; definition: "drink" The answer is HERBTEA.

Tab here miscalculated drink (4,3)

Daily Mail Cryptic #17072 | 28 Across | 2023-04-10 flower