Crossword Puzzle Shuts abruptly

Clue: Shuts abruptly

Founder of PC company abruptly shuts up shop! (OWNERCLOSESGATEWAY with 18 letters)
Abruptly, on a musical score (SUBITO with 6 letters)
Enters abruptly (BARGESIN with 8 letters)
Utter abruptly (BLURT with 5 letters)
End abruptly (e.g. ABORT with 5 letters)
Remove abruptly, as a tooth (YANK with 4 letters)
Shuts securely (SEALS with 5 letters)
Move swiftly and abruptly (DART with 4 letters)
Dump abruptly (JILT with 4 letters)
Abruptly dismissed (AXED with 4 letters)