Possible Clues:

• Wall intersection
• Predicament when sneering person puts off leader
• Not straight, but with more of a grain to it, perhaps
• Timeout place
• Establish exclusive control of set-piece
• Rook's starting place
• Medical examiner forgets oxygen - an embarrassing position
• Piece of bacon and pickle
• A grain might turn around this over 'er
• Incident in football match in which sides meet