What could be a clue for a body of fiction in a crossword?

I'm not sure. It's a bit of a puzzling clue. Maybe it refers to characters named May or Polly in a fictional work.

Epics could also fit. Epics are long narrative poems or stories that often deal with heroic deeds and adventures, so they are a great match for the 'long stories' crossword clue. They usually have a complex plot and a large number of characters.

An innovative idea. Since 'novel' also means new and original, an innovative idea could fit the crossword clue. It could be a fresh concept in various fields like technology, art, or business.

Some clues for a reminiscence novel could be 'Thoughts of yesteryears' or 'Sentimental journey tale'. They capture the essence of looking back and sharing past experiences.

Sometimes, it could be a phrase like 'intense joy' or 'deep sadness' that gives a hint about the emotion. Also, it could be a word related to the expression or manifestation of the emotion, like 'smile' for happiness or 'tears' for sadness.

I think it could be something like 'Great literary masterpiece' or 'Stunning fictional work'.

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

Novella. A novella can be a piece of pulp fiction. It's shorter than a novel but long enough to tell a complex story. Many pulp fiction works were in the form of novellas, with fast - paced plots and simple characters.

Comic. Comics can be considered a piece of pulp fiction. They have fictional stories, often with exciting plots and colorful characters. And like traditional pulp fiction, they were mass - produced for a popular audience.

I think it could be 'YA NOVEL' as a common phrase related to young adult fiction.