Baking container (3)
I believe the answer is:
tin
'baking container' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tin that I've seen before include "Kind of metal often used as food container" , "Atomic number 50" , "Canister" , "Silvery white metal" , "1 down, symbol Sn" .)