Get very heated (4)

I believe the answer is:

bake

I'm a little stuck... Click here to teach me more about this clue!

'get' is the definition.
The answer and definition can be both related to change as well as being verbs in their base form.
Perhaps you can see an association between them that I can't see?

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for bake that I've seen before include "Cook (eg, bread)" , "Cook (bread/cakes)" , "Roast" , "work in kitchen?" , "Oven-cook" .)

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