What does the cryptic crossword clue "Vivacious agent going round lifeboat (6)" mean?

The wordplay uses a container (one word inside another). ARK (synonym="lifeboat") in SPY (synonym="agent") = SPARKY The answer is SPARKY.

Vivacious agent going round lifeboat (6)

Guardian Cryptic #29602 | 27 Across | 2025-01-27 flower