Guys taking care of blossoming business? (10)
I believe the answer is:
nurserymen
'blossoming business?' is the definition.
Although both the answer and 'business?' are nouns, they are not in the same form of the noun. However, I know that 'blossoming' relates to this answer.
'guys taking care' is the wordplay.
I cannot quite see how this works, but
'guys' could be 'men' (guy can mean a man) and 'men' is found in the answer.
'care' could be 'nurse' (I've seen this before) and 'nurse' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'of' acts as a link.
Can you help me to learn more?
(Other definitions for nurserymen that I've seen before include "Growers and sellers of plants" , "Runny meres (anag.)" .)