Each answer consists of two words that sound the same, ie country / sea creatures, would be Wales / whales.
1. Relating to the mouth / relating to the ear
2. Detecting device / to review & suppress
3. Curve / vessel
4. In Rugby Union a loose scrum formed around a player with the ball off the ground / shopping centre
5. Female animals / nap
6. Garrett, Bridges or Brummell / weapon
7. Hi-hat / hieroglyph
8. A group of countries who have formed an alliance / large metal moulding of an internal combustion engine.
9. A saying / becomes threadbare
10. Belief in the reliability, truth, or ability of someone / tied up