All the deadly makings (6)

I believe the answer is:

lethal

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'all the deadly makings' is the definition.
I can't judge whether this defines the answer.

'all the deadly makings' is the wordplay.
'all the' anagrams to 'LETHAL'.
However, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for lethal that I've seen before include "All the change can be deadly." , "Death-dealing" , "Liable to cause death" , "Able to cause death" , "Vicious" .)

I've seen this clue in The Irish News.

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