Dissolved (6)
I believe the answer is:
melted
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dissolved</span>' is the definition.<br/ ><span class="explanation-format__explanation">(melting is a kind of dissolving)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for melted that I've seen before include "Turned liquid on heating" , "Changed from a solid to a liquid state" , "Liquefied by heating" , "Thawed" , "Like liquefied ice" .)