A knight stuck in base, feeling very hot (5)

I believe the answer is:

baked

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'feeling very hot' is the definition.
I can't judge whether this defines the answer.

'a knight stuck in base' is the wordplay.
'knight' becomes 'k' ().
'stuck in' means one lot of letters goes inside another.
'base' becomes 'bed' (both can mean the bottom of something).
'a'+'k'='ak'
'ak' placed into 'bed' is 'BAKED'.

Can you help me to learn more?

(Other definitions for baked that I've seen before include "Cooked (bread/cakes)" , "Cooked in an oven" , "Dried" , "cold before 8 [STATE]..." , "Got very hot in jacket" .)

I've seen this clue in The Guardian.

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