Each pair of missing words have the same initial letter and form a new word or phrase when joined together.
1)nut ? , ? wave (5,5)
2)? Cross, ? edge (6,7)
3)Ring ?, table ? (4,6)
4)? camp, Last ? (6,6)
5)extra ?, Crisp ? (3,6)
6)? meal, ? mouse (3,5)
7)Rough ?, Land ? (3,5)