The crossword solution for the term 'Fiction Expert' is 'LIAR'. A fiction expert is someone who is knowledgeable in the field of literature, specifically fiction. They are often authors, editors, or literary critics who have a deep understanding of the genre and its conventions. A LIAR is someone who tells untruths or falsehoods, which can be used to create a story or narrative. Therefore, a fiction expert can be seen as a kind of LIAR, as they use their knowledge and skill to craft stories that may not necessarily be true.