Possible Clues:

• Almost half necessary kit sorted - this'll go with shirt
• Sounds as if the tide comes up to your throat
• Item of clothing shows audacity, leading to endless row
• Formal wear for highly informal sort of party
• It's worn under the collar
• Male dress item (US)
• It has a knot
• Hundred thousand taken in after tax, that's characteristic of a smart outfit
• Fashion accessory
• Americans wear one to canoodle before match