Possible Clues:

• NZ city expressed disapproval finally about footwear?
• Cockpit in sports car not about suppressing unwanted noise, but it should keep you dry
• Disapproving cry from New Zealanders having little time for a stick-in-the-mud?
• Pouring in addition will involve new rainwear
• Surging like water, also covering new rainwear
• Wader's rising up not turned to advantage
• In the rain, one walked in southern city — it's an order
• Fairly popular, good style, very black climbing footwear
• Wear this, water thus rising further across end of garden?