crackle as a fire crossword clue

 The crossword clue "crackle as a fire" can be FIZZ.

The word "fizz" means to make a short, sharp, crackling sound. It is often used to describe the sound of a fire burning.

Here are some other possible answers for the crossword clue "crackle as a fire":

POP

SNAP

CRAWL

BUZZ

HISS

The specific answer that is correct will depend on the context of the crossword puzzle. For example, if the clue is followed by the number 4, then the answer would be "FIZZ".

I hope this helps! Let me know if you have any other questions.