Possible Clues:

• Gap between initiation and completion of a production process
• Interval between the start and completion of a production process
• I'm elated over advance period before start
• Initiative taken by magazine when there's delay
• Holds on to pet when 17 down is doing this for part of the planning stage
• Period between start and finish of production process
• Interval between ordering and receiving
• Let media broadcast what's needed to complete production?
• Prep period
• Efficient manufacturing reduces it (2 words)