Related Clues:

• Very serious
• Type of angle
• One seen in Häagen-Dazs
• Feature of 'se–or'
• Incisive
• It's wavy in São Paulo
• Sharp, as vision
• Diacritic for a long vowel sound
• Finely honed
• Very sharp
• Certain diacritical mark
• ^
• Curly diacritic
• Much more than mere
• Mark over an 'n'