Possible Clues:

• They bring more of an art in sex
• Bye-bye, perhaps, with a 33 down for the score
• Former southern facility set up spear carriers?
• Movie "atmosphere"
• Additional items surplus to requirements, spares
• Crowd-scene group
• Do they play no big role in cricket?
• Cast of thousands
• If you stare about ten, there are no stars there
• There's more in it for them