The term 'PART OF A BOOT' can be broken down into three separate crossword solutions: TOECAP (6 letters), INSOLE (6 letters), and TOE (3 letters). The TOECAP is the hard, protective covering at the front of a boot that covers the toes. The INSOLE is the inner sole of the boot, which provides cushioning and support for the foot. The TOE is the part of the foot that extends beyond the ankle and is covered by the TOECAP.