What does the cryptic crossword clue "Employed and also working under king (4,2)" mean?

The wordplay uses a charade (building blocks). TOO (synonym="also") + K (synonym="K") + ON (synonym="working") = TOOKON The answer is TOOKON.

Employed and also working under king (4,2)

Guardian Cryptic #29382 | 8 Down | 2024-05-14 flower