Possible Clues:

• Transmission problem
• Failure to reach a set target
• Overrun serving up, say, a quiet lager?
• Falling off
• Lag pipes faultily — failure to meet target
• Missing target of small border on left of paper
• Attendant's needed after petticoat sliding
• Printer's proof on sheet shows failure to make the mark
• Lag pipes (anag)
• Cutting with leaf falling away from a standard