The most common and most likely answer to this crossword clue is the 7 letter word RECASTS
I've seen this crossword clue in The Daily Telegraph
R
E
C
A
S
T
S
Buddy explains!
The straight part
We know that "Gets new actors/delivers more alluring lines" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gets new actors/delivers more alluring lines = recasts.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 RECASTS mean?
RECASTS noun- The act or process of recasting.
- An utterance translated into another grammatical form.
- To cast or throw again.
- To mould again.
- To reproduce in a new form.
- To assign (roles in a play or performance) to different actors.
- To assign (actors) to different roles.