Go into solution (8)
I believe the answer is:
dissolve
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">go into solution</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dissolve that I've seen before include "Become liquid, melt" , "Deliquesce" , "(Cause to) liquefy or vanish" , "Loves Sid (anag)" , "In terms of crying, start" .)