The most common and most likely answer to this crossword clue is the 6 letter word V-SIGN
I've seen this crossword clue in Financial Times
V
-
S
I
G
N
More clues leading to the result V-SIGN
- Gesture saving ground with a shed
- ‘FU’ in digital terms
- Churchill’s thing very sore at first before gin cocktail
- Obscene gesture that can be picked out when going through investigation?
- Victory token number 5 for Julius Caesar
- Gesture at sea saving a cast
- Very wrong to drink drop of Glenfiddich, a couple of fingers
Buddy explains!

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.