Please could I have help on these last few.
No. 21 The complete scenic view of an area (8)
No. 68 Search until you find valuables (8, 4)
No. 77 18 foot copper decorations Bertie and Bella (3, 5, 5)
No. 89 One way of spying on another perhaps (7, 3, 7)
Many thanks for any help.