Related Clues:

• Available for purchase
• Not at your desk
• Ump's shout
• With 17-Across, U2 song about most performances of 'Spider-Man: Turn Off the Dark'?
• On an errand, say
• See 4 Down
• "Who Let the Dogs ___?"
• Like Ricky Martin, publicly, since last year
• Some fun in the sun
• Word before or after look
• At lunch, maybe
• Umpire's thumb signal
• Attached a label
• Away, not at home
• There's a lot of it, by the sound of it, under 17 down