What does the cryptic crossword clue "Spray where blue rinse needs management (9)" mean?

The definition is "Spray". The wordplay uses an anagram. anagram of BLUE + RINSE = NEBULISER; definition: "Spray" The answer is NEBULISER.

Spray where blue rinse needs management (9)

Independent Cryptic #11662 | 15 Down | 2024-02-26 flower