Possible Clues:

• Into action again — war like this is painful
• Word that can precede 17, 25, 50, 59-Across and 11, 37-Down
• Word with alley or bone
• Word that can follow the start of 20-, 38- or 50-Across
• See 12
• See 1-Down
• Bet graduate one half of deck
• With 20-Across, working again, aptly
• Behind
• Does this get up to give you support?