How do I kill the giant spider

Hint 1 of 5:

You don't

Hint 2 of 5:

You can, however, trap her in another part of the caves

Hint 3 of 5:

Make her follow you around to the elevator.

Hint 4 of 5:

Go through the elevator, closing both doors behind you, thus trapping her

Hint 5 of 5:

The path on the other side of the elevator leads you to her lair