Puzzle 3

In the middle, near the midline.

British gold coin once worth 21 shillings.

The P in OP on an online forum.

Masters of ceremony.

Solid, well made, of furniture, say.

Canadian national park with Mount Athabasca.

Undertaking to lose all tricks in a game of cards.

Chewing gum ingredient sourced from tree latex.

Nocturnal marsupial, native to Western Australia.

Buffistas, Little Monsters, Gleeks.

__ foot, specialist sewing-machine attachment.

Money left to a charity in someone's will.

Black Cauldron villain with pointy protrusions.

Michael __, holder of the long-jump world record.

Medieval stringed instrument with a French name.