A spare tire is an extra tire that is kept in a vehicle in case of a flat tire. The crossword solutions for the term SPARE TIRE include FLAB (4 letters), FAT (3 letters), GUT (3 letters), ROLL (4 letters), BELLY (5 letters), PAUNCH (6 letters), BEERBELLY (9 letters), WAISTWASTE (10 letters), BREADBASKET (11 letters), and CORPORATION (11 letters). These words all refer to excess FAT around the waist, which is often associated with having a spare tire.