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 CLASP is a possible answer for Envelope closer. You can also see that this clue and answer has appeared in these newspapers and magazines: June 29 2014 Universal, November 1 2013 The Chronicle of Higher Education, September 18 2013 Universal and more.