The most common and most likely answer to this crossword clue is the 4 letter word FILM
I've seen this crossword clue in The Times
F
I
L
M
More clues leading to the result FILM
- Early showings of Falling In Love: mediocre movie
- Release group from slum life given lift
- Record first of fifty-one starters for Le Mans
- Thin layer in art form
- Skin / flick
- White Christmas, say, initially forecast in London, maybe
- Picture of dream life in retirement
- Slick 25 perhaps
- Medium with a lot of animation, on reflection
- Gandhi? Fellow followed by liberal mass around India
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.
What does FILM mean?
FILM noun- A thin layer of some substance; a pellicle; a membranous covering, causing opacity.
- A medium used to capture images in a camera.
- A movie.
- Cinema; movies as a group.
- A slender thread, such as that of a cobweb.
- To record (activity, or a motion picture) on photographic film.
- To cover or become covered with a thin skin or pellicle.