Possible Clues:

• Be suspicious
• Sense something's amiss
• Become suspicious
• One will be suspicious of that faculty for alcoholic retiring sailor
• Suspect trickery
• Suspect deception
• Suspect something
• To know if something was wrong you'd expect a whiff of this when Frank Sinatra was out with the Pack?
• Don't buy it
• Become suspicious when Pasternak heroine stuffs fish