boot tree
n 1. (Clothing & Fashion) a shoetree for a boot, often having supports to stretch the leg of the boot
2. (Clothing & Fashion) a last for making boots
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014