What's brought from food shop before jolly (8)
I believe the answer is:
Here is my best explanation:
'what's brought' is the definition.
I can't tell whether this defines the answer.
'food shop before jolly' is the wordplay.
'food shop' becomes 'deli' ('deli' can be a synonym of 'food shop').
'before' is a charade indicator (letters next to each other).
'jolly' becomes 'very' (I've seen this in other clues).
'from' acts as a link.