Possible Clues:

• Victorian Briton — parent forbidding certain hairstyle
• It's a spectacle with a severe look of Elvis going on ahead
• Hairstyle associated with a mistress of Louis XV
• Extravagant quiff
• Brit parent forbidding a certain hairstyle
• Spectacular display with a solemn type is the cut of Elvis
• Madame de --, mistress of King Louis XV
• Humourless politician with a stern style a bit like Trump's?
• Ceremony requires a severe hairstyle
• Ritual with a morose style