What does the cryptic crossword clue "Miss film's opening to get model? (5,4)" mean?

The wordplay uses a charade (building blocks). COVER (synonym="film") + GIRL (synonym="miss") = COVERGIRL The answer is COVERGIRL.

Miss film's opening to get model? (5,4)

Guardian Cryptic #29203 | 6 Down | 2023-10-17 flower