Workers' cafe and cutlery box (7)
I believe the answer is:
canteen
'workers' cafe and cutlery box' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for canteen that I've seen before include "Workers' cafe and cutlery box" , "A case of cutlery" , "Soldier's water-flask" , "Water flask" , "Staff eating area" .)