Possible Clues:

• Take into service or commit to marriage
• Promise to have this - Gee! - about the nag
• Get to grips with having to start a battle
• Take into employment or occupy attention
• Take on, hire
• Hire; get to grips with
• To get in gear, 'e gets an egg that's scrambled
• Take on (eg for work, in battle)
• Book an egg with Ena
• Showing promise, you sign up