Blasting stuff (3)

I think it could be either:

Which length description are you looking for?:

tnt

'blasting stuff' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for tnt that I've seen before include "Explosive compound" , "Type of high explosive" , "Explosive stuff" , "Initially, powerful explosive" , "Very powerful explosive, compressed" .)

I've seen this clue in The Wall Street Journal and the King Feature Syndicate.

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