The most common and most likely answer to this crossword clue is the 6 letter word STREEP
I've seen this crossword clue in The Guardian
S
T
R
E
E
P
More clues leading to the result STREEP
- Film star looks back across time
- Award-winning actress, awfully terse with Provis
- Plane perhaps possessed by special actress
- Actress in Street with noble upbringing
- Holy man has to look back at T
- Look up in support of good man and actress
- Peter’s involved with Meryl
- Titled figures rose around theatre’s entrance for actress
- Child was portrayed by this actress when about 60
- Oscar winner in Christmas tree picture
Buddy explains!

The straight part
We know that "Film star" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case film star = streep.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.