in this indifferently abbreviated crossword puzzle. Those longer initialized entries are joined by the shorter SST (11A. Plane with a machmeter: Abbr.); HMS Pinafore (64A); DIY (50D. Like many a home improvement); NBA (49A. Hoops org.); abbreviations and contractions ( AGCY, CONJ, HRS, ORE, TIS, TSP, VEE, VOCAB ); and the