Mouth-watering (5)
I believe the answer is:
tasty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mouth-watering</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tasty that I've seen before include "Mouth-watering" , "Attractive, appealing" , "Pleasantly flavoursome" , "Sexually attractive?" , "Scrumptious" .)