The most common and most likely answer to this crossword clue is the 6 letter word WIGGLE
I've seen this crossword clue in The Daily Telegraph
W
I
G
G
L
E
More clues leading to the result WIGGLE
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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 WIGGLE mean?
WIGGLE noun- A rapid movement in alternating opposite directions, not necessarily regular.
- An alternating state or characteristic.
- (in the plural) See wiggles.
- To move with irregular, back and forward or side to side motions; To shake or jiggle.