Sugar syrup (8)
I believe the answer is:
molasses
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sugar syrup</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 molasses that I've seen before include "Dark syrup extracted from sugar cane" , "Thick dark treacle" , "Syrup drained from raw sugar for some lass" , "Syrup, by-product of refining" , "what refinement can bring" .)