Related Clues:

• Stretch in a seat
• Contract detail
• Office length
• Jail sentence
• Six years, for a 23-Across
• Four years in the White House
• Academic calendar division
• Six years in the Senate
• Clause in a contract
• Four years, for a U.S. president
• Active span
• Part of a sentence
• Set length of time
• __ paper
• Escape __