Crossword Puzzle Namesake of Thursday

Clue: Namesake of Thursday

Offenbach heroine and namesakes (HELENES with 7 letters)
Microsoft Office feature (POWERPOINT with 10 letters)
Post-office opening (SLOT with 4 letters)
Office repro (STAT with 4 letters)
President who left office in 1913 (TAFT with 4 letters)
Aggressive policy to increase box office sales? (TICKETOFFENSIVE with 15 letters)
Office meeting place (WATERCOOLER with 11 letters)
Chief law officer of America (ATTORNEYGENERAL with 15 letters)
Winger of "An Officer and a Gentleman" (DEBRA with 5 letters)
David's chief officer (IRA with 3 letters)