Crossword Puzzle Kind of engine for an airplane

Clue: Kind of engine for an airplane

Kind of angle (e.g. ACUTE with 5 letters)
Kind of office machine (ADDING with 6 letters)
A kind of one ends each of this puzzle's four longest answers (ANT with 3 letters)
Kind of angel (e.g. ARCH with 4 letters)
Kind of enemy or angel (ARCH with 4 letters)
Kind of duke or angel (ARCH with 4 letters)
Kind of forces (e.g. ARMED with 5 letters)
Kind of angle or feather (AXIAL with 5 letters)
Kind of antiseptic acid (e.g. BORIC with 5 letters)
Kind of office (e.g. BOX with 3 letters)