Related Clues:

• Cork - goalkeeper?
• Sink accessory
• One who checks plug
• Introduction of safety cap for each plug
• Plug organised sport, including fitness training
• It's causing a hold-up in some bottle-neck
• Put on a bottle, is it there to stay?
• Cork by end of knots on hat
• Person unable to maintain momentum? One may get it in the neck
• Bung in small hat
• One does not continue giving a plug
• Spigot or cork
• One blocks sun hat
• Sink sight
• Cork, e.g