Related Clues:

• Have thoughts
• Contrive, as a scheme
• Use the mind's eye
• John Lennon classic
• What an ad man might do
• Conceive mentally
• 1971 John Lennon song
• Use one's noggin
• Opening in the Navy?
• Trapdoor opening
• Conceive of
• "Think of it!"
• 1970s peace anthem
• Ship door
• Form a concept