Sweet treat
I believe the answer is:
candy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sweet treat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for candy that I've seen before include "Girl's name (diminutive)" , "American confectionary" , "American sweets" , "Crystallised sugar; US sweets" , "Sweet (US)" .)