What does the cryptic crossword clue "Avoid exertion? It's key a tea is brewed! (4,2,4)" mean?

The wordplay uses an anagram. anagram of IT'S + KEY + A + TEA = TAKEITEASY The answer is TAKEITEASY.

Avoid exertion? It's key a tea is brewed! (4,2,4)

Daily Mail Cryptic #17169 | 23 Across | 2023-08-23 flower