What does the cryptic crossword clue "Temporary authorities on the subject of convenience (7)" mean?

The wordplay uses a charade (building blocks). RE (synonym="on the subject of") + GENTS (synonym="convenience") = REGENTS The answer is REGENTS.

Temporary authorities on the subject of convenience (7)

Guardian Cryptic #29669 | 4 Down | 2025-04-15 flower