Water plants with solution of solutes (7)
I believe the answer is:
lotuses
'water plants' is the definition.
(lotus is a kind of water plant)
'of solutes' is the wordplay.
'of' indicates anagramming the letters (the answer comes from or 'of' the letters).
'solutes' with letters rearranged gives 'LOTUSES'.
'with solution' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for lotuses that I've seen before include "Plants" , "sports cars" , "Water lilies" , "flowers" , "bloomers" .)