Anagrammer Crossword Solver is a powerful crossword puzzle resource site. We maintain millions of regularly updated crossword solutions, clues and answers of almost every popular crossword puzzle and word game out there. We encourage you to bookmark our puzzle solver as well as the other word solvers throughout our site. Explore deeper into our site and you will find many educational tools, flash cards and plenty more resources that will make you a much better player. This page shows you that ADD is a possible answer for Supplement. You can also see that this clue and answer has appeared in these newspapers and magazines: June 24 2019 Thomas Joseph - King Feature Syndicate, June 24 2019 Thomas Joseph - King Feature Syndicate, February 20 2019 New York Times and more.