Related Clues:

• ''Quickly!''
• Rush-job acronym
• ''Quickly!'' acronym
• Word on an urgent message
• Without delay, in a memo
• 'Right away!'
• ''On the double!''
• Posthaste, briefly
• Letters akin to P.D.Q.
• 'Stat'
• In very short order
• Express letters?
• ''... and make it fast!''
• 'Stat' in memos
• 'Yesterday!'