The most common and most likely answer to this crossword clue is the 6 letter word A-LIST
I've seen this crossword clue in Financial Times
A
-
L
I
S
T
More clues leading to the result A-LIST
- Boxer on street celebrity roll
- Fatalist will lose weight to become famous
- Famous last words of cruciverbalist
- Very famous reporter is half-cut
- Star exists in Altair, not half!
- Belonging to the most famous group in Portugal is terrific
- Top celebrities included by journalists?
- First schedule for a finalist who has lost a fin
- Arsenal is trying to assemble sought-after individuals
Buddy explains!
The straight part
We know that "Star" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case star = a-list.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.