Second year completed? Sweet (5)
I believe the answer is:
syrup
'sweet' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'second year completed?' is the wordplay.
'second' becomes 's' (common abbreviation).
'year' becomes 'yr' (abbreviation).
'completed?' becomes 'up' (up can mean completed or finished).
's'+'yr'+'up'='SYRUP'
Can you help me to learn more?
(Other definitions for syrup that I've seen before include "Cloying sweetness" , "cough mixture?" , "See 12" , "Thick sugar solution" , "sort of medicine?" .)