Crossword Puzzle Massive impasse

Clue: Massive impasse

Palindromic thought about preparing to pay down massive debt (MUSTSAVEVASTSUM with 15 letters)
Massive group (HORDE with 5 letters)
__ impasse: stuck (ATAN with 4 letters)
City west of Mount Massive (ASPEN with 5 letters)
Massive athletes (SUMOS with 5 letters)
Massive-sized Brit. lexicon (OED with 3 letters)
It's massive and relatively hot (BSTAR with 5 letters)
Most massive known dwarf planet (ERIS with 4 letters)
-- impasse (ATAN with 4 letters)
Impasse, figuratively (WALL with 4 letters)