Possible Clues:

• Some say it's a combination of experience, knowledge and good judgment
• See 13
• 'Jammy' ladies going to wicked city with a loss of love and common sense
• Understanding Norman?
• Great leader's trait
• Guru's sine qua non
• Put forward (an idea)
• Accumulated learning, sagacity
• Ability to make the right use of knowledge
• Knowledge gained through experience