The most common and most likely answer to this crossword clue is the 6 letter word SELFIE
I've seen this crossword clue in Independent
S
E
L
F
I
E
More clues leading to the result SELFIE
- Small fairy - that's a popular image nowadays
- Feels weird grabbing one personal photo
- 6 Small mythical creature that’s in photo
- Small brownie that is making photo
- 21 of someone’s head – Life magazine’s ultimate shot
- Showing up a lot of skin that is visible in snap
- Picture framed by police if less turned up?
- Second shoemaker working the night shift that is shot
- Shoot oneself- life gone in case of suicide
- Special brownie, that is the latest fad
Buddy explains!

The straight part
We know that "snap" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case snap = selfie.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 SELFIE mean?
SELFIE noun- A photographic self-portrait, especially one taken manually (not using a timer, tripod etc.) with a small camera or mobile phone.
- To take a selfie