What does the cryptic crossword clue "Moved suddenly – small accident (6)" mean?

The definition is "accident". The wordplay uses a charade (building blocks). S (synonym="S") + PRANG (synonym="PRANG") = SPRANG The answer is SPRANG.

Moved suddenly – small accident (6)

Guardian Cryptic #29349 | 5 Across | 2024-04-05 flower