The term 'Financial Supporter' can be broken down into two crossword solutions: BACKER (6 letters) and DONOR (5 letters). A BACKER is someone who provides financial support for a project or venture, while a DONOR is someone who gives money, goods, or services to a cause or organization. Both terms refer to individuals who provide financial assistance to help fund a particular endeavor. Financial Supporters are often seen as essential to the success of a project or venture, as they provide the necessary resources to make it happen.