Related Clues:

• Have an inkling
• Reason
• Horse chaser
• Good thinking
• 35-Across, e.g.
• One of five faculties
• Touch, for one
• Touch or taste
• Good sense
• What to try to make of this puzzle?
• Marbles, so to speak
• Loon's lack
• Have a gut feeling
• Simpleton's lack
• Brainpower