Related Clues:
- Showing promise, you sign up
- Become bound; attract
- Do battle for commission
- Employ engineer? Get on!
- Almost due to get married, but fight
- Recruit an engineer with lots of time available
- Promise to start military action
- Keep occupied
- Book in English period
- Promise to hook up
- Recruit for combat?
- Secure last bits of uneaten fruit
- Occupy (interest)
- Meet in battle and swear to marry?
- Commission, say, bringing in new generation