Brick baker (4)
I believe the answer is:
kiln
'brick baker' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for kiln that I've seen before include "Furnace for firing bricks" , "Oven for firing ceramics etc" , "Oven for firing pottery" , "Baker" , "Oven for burning lime" .)