Kiln (4)

I think it could be either:

oven

oast

'kiln' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for oven that I've seen before include "Cooker; furnace" , "Compartment for baking" , "Hot spot" , "Small furnace" , "It may get very hot" .)

I've seen this clue in The Telegraph, The Mirror, The Times, the Sydney Morning Herald, The Guardian, the Penny Press, The Star Tribune, The Sunday Times and the Evening Standard.

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