The most common and most likely answer to this crossword clue is the 7 letter word CRACKLE
I've seen this crossword clue in The Guardian
C
R
A
C
K
L
E
More clues leading to the result CRACKLE
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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 CRACKLE mean?
CRACKLE noun- A fizzing, popping sound.
- A style of glaze giving the impression of many small cracks.
- The fifth derivative of the position vector with respect to time (after velocity, acceleration, jerk, and jounce), i.e. the rate of change of jounce.
- To make a fizzing, popping sound.