Possible Clues:

• Work with another, be helpful
• Perhaps when the cask maker had done so, he would not suffer from 34 across
• To be a help he made a barrel and made a meal of it
• Work with someone managing to secure zero energy charge
• Join forces for peace or to negotiate
• The one that made 12 across was fed, just to be helpful
• Help Hansel and Gretel, say, needed in cottage
• Work constructively with others
• Work to the same end
• Not work independently