Cryptic crossword clue
Mother grasps baking at last — it's very hot under the crust 5

The most common and most likely answer to this crossword clue is the 5 letter word MAGMA

I've seen this crossword clue in The Times
M
A
G
M
A


Buddy explains!

The straight part
We know that "it's very hot under the crust" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it's very hot under the crust = magma.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does MAGMA mean?

MAGMA noun
  1. The molten matter within the earth, the source of the material of lava flows, dikes of eruptive rocks, etc.
  2. A basic algebraic structure consisting of a set equipped with a single binary operation.
  3. Any soft doughy mass.
  4. The residuum after expressing the juice from fruits.

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