Crossword Puzzle Industrious six-footers?

Clue: Industrious six-footers?

Industrious six-footers (ANTS with 4 letters)
Six-footers? (FATHOMS with 7 letters)
Six-footers in marching bands? (ARMYANTS with 8 letters)
Sweet sixteen, e.g. (AGE with 3 letters)
Sixth step (BIAS with 4 letters)
Org. with a Sixth Man Award (NBA with 3 letters)
Describing a trial guarantee in the Sixth Amendment (SPEEDYANDPUBLIC with 15 letters)
Radical sixties gp. (SDS with 3 letters)
Giant sixes, briefly? (TDS with 3 letters)
Sixteenth of a pound (e.g. ONEOUNCE with 8 letters)