"Enter the Fairies" after a sudden clatter or crash?

Solution 1:

It's sarcastic. Fairies are supposed to be sylph-like and subtle, and such a crash is anything but.

Enter the Fairies sounds like a stage direction, but it doesn't appear in Shakespeare. Fairly close are

Enter, from opposite sides, a Fairy, and PUCK — A Midsummer Night's Dream Act 2 Sc. 1

Enter SIR HUGH EVANS, disguised as before; PISTOL, as Hobgoblin; MISTRESS QUICKLY, ANNE PAGE, and others, as Fairies, with tapers — Merry Wives of Windsor Act 5 Sc. 5

However, it does appear in The Maydes Metamorphosis, published around 1600 and of uncertain authorship:

Enter the Fairies, singing and dancing.