Answer:

cloak

Answer	Crossword Clue
CLOAK	Dagger's partner
CLOAK	Espionage symbol
CLOAK	Shrouding device

CLOAK	Hide
CLOAK	Cape
CLOAK	Dracula accessory
CLOAK	Mask
CLOAK	Spy wear
CLOAK	Commonly long garment
CLOAK	Dagger's companion
CLOAK	Dagger partner

CLOAK	Long, loose garment
CLOAK	Cover with a cape
CLOAK	Conceal
CLOAK	Dagger
CLOAK	Count Chocula wear
CLOAK	Potter's made him invisible
CLOAK	.. and dagger
CLOAK	Loose outer garment

CLOAK	Holmes garb
CLOAK	Fashionable operagoer's garment
CLOAK	..-and-dagger (secretive)
CLOAK	Part of a Dracula costume
CLOAK	Dracula's outer garment
CLOAK	Part of a Sherlock costume
CLOAK	Traditional spy wear
CLOAK	Dissemble.

CLOAK	Conceal.
CLOAK	... and dagger.
CLOAK	Disguise.
CLOAK	Garment.
CLOAK	Dagger's companion.
CLOAK	Dagger's partner.
CLOAK	Dagger's predecessor.
CLOAK	Garb for Sir Walter.

CLOAK	Dagger and ...
CLOAK	Garment
CLOAK	Veil
CLOAK	Half of a spy's outfit
CLOAK	Pelisse