Dissolvable (7)
I believe the answer is:
soluble
'dissolvable' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for soluble that I've seen before include "Capable of being solved (in water?)" , "Lobules (anag)" , "like most acetates" , "Can be converted to a liquid state" , "Aspirin (or problems) may be" .)