Who is the fictional Amelia and what was her response when asked in a crossword?

I'm not sure exactly. Maybe it's a character from a particular novel or story that's not widely known.

I'm not sure. It could be a character from a particular fantasy story or myth.

I recommend the book, Mei Niang, I'm a fake eunuch, and you still let me sleep with you. In it, there are passages where the eunuch answers the emperor. This novel was about the Tang Empire that had traveled through a parallel time and space. The protagonist, Zhao Wujiang, had become a fake eunuch and even snuck into Wu Meiniang's bedroom. In the story, Wu Mei Niang asked Little Zhao to keep an eye on the Emperor, and the Emperor also asked Little Zhao to keep an eye on Empress Wang. One of the eunuchs answered that the Emperor wanted him to sleep with her, and another eunuch answered that it was not good for the Emperor to recruit people to sleep with her. The above is my recommendation. I hope you like it. Muah ~

Chen Hao was the person who made her a heartthrob.

It could be names of fictional characters, places from fantasy novels, or titles of made-up stories.

Possibly, 'Reindeer from a made-up story' or 'Imaginary deer associated with the cold season'. These could be the clues you're looking for.

" She's Too Infatuated " was a modern romance novel by Qian Yanmu. The story told the story of twin sisters who had a bad fate. The older sister fell in love with someone she shouldn't have, and the younger sister got the love and affection of a good man. In the novel, there were characters such as the calm and introverted CEO, the black-bellied but devoted IT elite, and the seemingly gentle but slick psychiatrist. This novel was available online on Qidian Chinese Network and other platforms. The specific plot and ending could only be found after reading the full text.

It could be Frodo Baggins. He's a well-known character who embarks on a journey to Mordor in 'The Lord of the Rings'.

Sherlock Holmes is one fictional detective who was known to solve crossword puzzles. His sharp intellect and logical reasoning made it possible for him to tackle such challenges.

I have no idea of a particular term for this. It could potentially be something made up like 'crossword novel engagement' but that's not a standard or known phrase.