What does the cryptic crossword clue "Time for everyone to pass on their knowledge (5)" mean?

The definition is "Time". The wordplay uses a charade (building blocks). T (synonym="T") + EACH (synonym="EACH") = TEACH The answer is TEACH.

Time for everyone to pass on their knowledge (5)

Guardian Cryptic #29256 | 9 Across | 2023-12-18 flower