Crossword Puzzle Inspired stuff

Clue: Inspired stuff

Inspired stuff? (AIR with 3 letters)
Hit 2012 movie featuring a stuffed bear (TED with 3 letters)
Made of sterner stuff. (HARDIER with 7 letters)
Pit stop stuff (e.g. GAS with 3 letters)
Chimney stuffing (SOOT with 4 letters)
Stuff with directions that might end with "Rinse. Repeat" (SHAMPOO with 7 letters)
Hard-to-erase stuff (INK with 3 letters)
Inbox stuff (e.g. MAIL with 4 letters)
Having the stuff (ABLE with 4 letters)
Strong stuff in a shell (TNT with 3 letters)