Sweet thing of little consequence (6)
I believe the answer is:
trifle
This might be a double definition.
'sweet' is the first definition.
(trifle is a kind of sweet)
'thing of little consequence' is the second definition.
'trifle' can be an answer for 'thing' (I have seen 'Insignificant thing ' mean 'trifle' so perhaps 'thing' could also mean 'trifle'). I am unsure of the 'of little consequence' bit.
Can you help me to learn more?
(Other definitions for trifle that I've seen before include "Cold dessert" , "A little thing for the pudding" , "nothing?" , "A small portion" , "Thing of little value or importance" .)