Answer:

spies

Answer	Crossword Clue
SPIES	86 and 99, in "Get Smart"
SPIES	Caleb and Joshua
SPIES	Secret agents

SPIES	Fleming characters
SPIES	Bug specialists?
SPIES	Prohias' adversaries
SPIES	"Mad" adversaries
SPIES	Prohias's adversaries
SPIES	Perpetrators of black-bag jobs
SPIES	Agents
SPIES	Moles, maybe

SPIES	Spots
SPIES	Bond and Bourne
SPIES	Nathan Hale and others
SPIES	Notices
SPIES	Undercover agents
SPIES	Some plants
SPIES	007 and others
SPIES	Mata Hari et al.

SPIES	Most "Get Smart" characters
SPIES	Spooks
SPIES	Some spooks
SPIES	Secret observers
SPIES	They gather intelligence
SPIES	Austin Powers and Johnny English
SPIES	Le Carre characters
SPIES	Smiley's people?

SPIES	CIA employees
SPIES	Operatives
SPIES	Bond's cohorts
SPIES	Moles, e.g.
SPIES	CIA agents
SPIES	Catches sight of
SPIES	Hale and Hari
SPIES	M's subordinates

SPIES	Cloak-and-dagger types
SPIES	Moles, for example
SPIES	Works in intelligence
SPIES	Parts of some rings
SPIES	Secret seekers