Crossword Puzzle High or reverse

Clue: High or reverse

Reverse order? (ABOUTFACE with 9 letters)
Author of "Time's Arrow," 1991, a novel written in reverse chronological order (AMIS with 4 letters)
Orbital high point (APOGEE with 6 letters)
High point in an orbit (APOGEE with 6 letters)
Orbital high points (APOGEES with 7 letters)
Order from on high (e.g. DECREE with 6 letters)
Orders from on high (EDICTS with 6 letters)
High order (FIAT with 4 letters)
High and reverse, e.g. (GEARS with 5 letters)
About as high on the organization chart (LATERAL with 7 letters)