Related Clues:

• Time served
• It features a series of rounds
• Stretch on the job
• Stretch in the service
• Pugilistic affair
• Time in the Army, e.g.
• Army hitch, e.g.
• Match in a ring
• Pay-per-view event
• Limitation of effort
• Restrict to small allowance, be niggardly
• Be niggardly with tints
• Be niggardly, or fixed amount of work
• Period of activity or boxing contest
• A boxing contest or period of activity