The most common and most likely answer to this crossword clue is the 6 letter word LUVVIE
L
U
V
V
I
E
Buddy explains!
The straight part
We know that "Actor" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case actor = luvvie.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 LUVVIE mean?
LUVVIE noun- An affectionate term of address.
- (sometimes derogatory) an actor or actress, especially a narcissistic and pretentious one.