Crossword Genius

Too much talk of a terror weapon (3)

Ross

I believe the answer is:

gas

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

'too much talk' is the definition.
'gas' can be an answer for 'talk' (I've seen this before). I am not certain of the 'too much' bit.

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for gas that I've seen before include "It may be natural" , "Hydrogen or oxygen, say" , "Eg, nitrogen" , "Talk profusely" , "State of matter not solid or liquid" .)

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