Possible Clues:

• Soap ingredient?
• Play short tune, hit by Abba originally
• Mother's securing older parts in sensational plays
• Play short tune, hit by Abba initially
• Model represented by artist with mother in sensational event
• Histrionics — sensational play
• Common soap ingredient
• Mother takes in older sort of play
• Extravagantly styled play
• A mad role played around end of film? Highly sensational affair