Crossword Genius

What do you call a guy who sprays plants? (6)

Ross

I believe the answer is:

mister

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

This clue might be a double definition.

'what do you call' is the first definition.
The definition suggests a singular noun which matches the answer.

'a guy who sprays plants?' is the second definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

Can you help me to learn more?

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

I've seen this clue in The Independent.
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