Crossword Genius

Aerosol merits getting sprayed (6)

Ross

I believe the answer is:

mister

I'm a little stuck... Click here to teach me more about this clue!

'aerosol' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'merits getting sprayed' is the wordplay.
'merits' can be anagrammed to 'MISTER'.
Though, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for mister that I've seen before include "that's what you'd call him" , "Form of address to a man, used without his name" , "Mr" , "Set rim (anag.)" , "Merits of form of address to man" .)

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