Sweet pin (7)
I believe the answer is:
skittle
This clue could be a double definition.
'sweet' is the first definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'pin' is the second definition.
(I know that skittle is a type of pin)
Can you help me to learn more?
(Other definitions for skittle that I've seen before include "Pin to be knocked down" , "Upset" , "one gets bowled over" , "one keeps getting knocked down" , "Ninepin" .)