Quick crossword No 322

Across

1. Composed La Scena in peace on vacation in garden (9)
2. String instrument, Italian? Yes – leads harmony (11)
3. Covered in Shakespearean film? (3)
4. Austrian airship losing power, pressure, elevation for miles, reaching heaven (9)
5. Polish male louts breaking rules on King’s island (11)
6. Month of parade (5)
7. Nine-part wordplay round in bonkers Noel (7)
8. Violinists do it throughout concerts, trumpeters when they end (6)
9. Dancer? Disney’s unknown queen (7)
10. Found in Vivaldi: unnecessary turns – tedium (5)
11. Practising wearing nothing – Britten’s bag? (6)
12. Signal from conductor's unnecessary and early, at first (3)

Down

1. Musician’s "grass den" cleared out (5)
2. Venetian limping in wildlife park’s very quiet (5)
3. Writer – otherwise all right (6)
4. Party like rioting at the ballet (9)
5. Justin’s old band supporting current in concert (2,4)
6. Sporting woman skis, tackling bend and fork together with one pole – talented! (11)
7. Music publisher embracing urban genre and opera (5,6)
8. Composer’s half-cut adulator enters recovery (...mostly) (9)
9. Supervised finished cut (7)
10. Ex-Mayor to return as European popstar? (3)
11. Play Mars endlessly in office (3)
12. Promises radiance in opening and finale of Pelléas? (7)