Related Clues:

• "Don't dawdle!"
• "Hurry up," on memos
• Letters of haste
• Memo acronym
• Asia and thereabouts
• Dayspring direction
• Pronto, on a memo
• Into the sunrise
• River beneath the Brooklyn
• Trump's "today!"
• Part of 65-Across
• Without hesitation
• 'On the double!'
• "Stat!"
• Sunup site