Possible Clues:

• Reduce or abolish outside parking
• Parking allowed in Scottish river now it's empty
• Empty out
• Reduce (a stock)
• Use up resources or materials
• Holding pump in front, remove exhaust
• Use up, reduce in quantity
• Weaken and cross out 'seizing power'
• Reduce (stocks)
• Reduce with diet pill oddly taken every Tuesday evening to begin with