Possible Clues:

• Senor should have one day in Panama, say
• Symbol that can mean "approximately"
• Accent on "señor"
• Switching from American to English, actress Swinton's accent?
• Pound in change picked up for Mark in A Coruña
• Mark placed over letter, line in ebbing and flowing waves
• Character usually seen in a quinceanera?
• Piece in cited literature about accent
• Leader of Turkey that is welcoming outsiders in loud foreign accent
• Symbol used on a Spanish n