Dulcet — dessert (5)
I believe the answer is:
sweet
I believe this is a double definition.
'dulcet' is the first definition.
(I know that dulcet can be written as sweet)
'dessert' is the second definition.
(I know that dessert can be written as sweet)
(Other definitions for sweet that I've seen before include "Pud" , "Toffee, e.g." , "Like sugar, honey etc." , "Term of endearment" , "Confection" .)