Answer: intrigue

AnswerCrossword Clue
INTRIGUE

Clandestine love affair

INTRIGUE

Mystery writer's forte

INTRIGUE

Cloak-and-dagger doings

INTRIGUE
Tantalize
INTRIGUE
Hugger-muggering
INTRIGUEUnderhanded activities
INTRIGUECaptivate
INTRIGUEConspiracy.
INTRIGUEUnderhand plot.
INTRIGUEMachination.
INTRIGUEMachiavellian specialty.
INTRIGUESecret love affairs.
INTRIGUEFascinate