The crossword solutions for the term 'ADD DETAILS, AS TO AN ACCOUNT OR IDEA' are 'ELABORATE' (9 letters) and 'PAD' (3 letters). ELABORATE means to give more details or information about something, while PAD means to add extra material to a text or story. Both words can be used to describe the act of adding details to an account or idea. ELABORATE implies that the details are more in-depth and comprehensive, while PAD implies that the details are more superficial and not as important.