Related Clues:

• RN's "at once!"
• Participates in a relay
• Sports page figure
• ''Immediately,'' in the O.R
• Immediately, in hospitals
• Sports no
• Speak out almost immediately
• Massé, e.g
• Sports page number
• R.B.I.s or H.R.s
• Saves, for a 1-Across
• 'Hurry!' in a hospital
• Baseball-reference.com tidbit
• Finishes a triathlon
• 'Now!' in the ER