Crossword Genius

Way of working leads to some surprisingly low-level growth? (4)

Ross

I believe the answer is:

moss

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

'low-level growth?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'way of working leads to some surprisingly' is the wordplay.
'way of working' becomes 'mo' (I've seen this in other clues).
'leads to' indicates taking the first letters.
The first letters of 'some surprisingly' is 'ss'.
'mo'+'ss'='MOSS'

Can you help me to learn more?

(Other definitions for moss that I've seen before include "Small flowerless plant(s)" , "Plant(s) not wanted on lawns" , "Small plant; peat bog" , "Matted growth on trees, etc." , "Small plants growing as thick mat" .)

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