Angry worker grabs one item of food (9)
I believe the answer is:
croissant
'item of food' is the definition.
'croissant' can be an answer for 'food' (croissant is a kind of food). I am unsure of the 'item of' bit.
'angry worker grabs one' is the wordplay.
'angry' becomes 'cross' (cross can mean annoyed or angry).
'worker' becomes 'ant' (worker is a type of ant).
'grabs' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'cross'+'ant'='crossant'
'crossant' placed around 'i' is 'CROISSANT'.
Can you help me to learn more?
(Other definitions for croissant that I've seen before include "A rich crescrent-shaped bread roll" , "Breakfast pastry" , "Bread-roll" , "Breakfast roll" , "Tasty crescent-shaped French bread roll" .)