Probably easiest to make a selection around the green area and press Ctrl+J to place it on its own transparent layer.
You can then switch off the layers below by clicking on the eye symbols as required.
I should have said if it’s almost your final deign it is easiest to work on a flattened image re-saved under a new file name (Layer >> Flatten Image) and then make your selection.
If you intend to make further design changes then you should try a layer mask on layer 10 and paint out the unwanted area with a brush and foreground color set to black. You can switch to white, to correct, if you make a mistake.
Perhaps loading a selection of Shape 9 and then adding a layer mask to Shape 10 would work.
(Ctrl click on the layer Shape 9 layer thumbnail in the layers panel to get the selection)
Also, if you move the Shape 9 layer below the shape 10 layer and create a clipping mask, that might work as well.
(after moving shape 9, make shape 10 the active layer and press Ctrl+G to create the clipping mask)
(from the menu Layer>Create Clipping Mask)
Ctrl-click Shape 9 in the Layers Palette to select just the shape.
Invert the selection.
Activate Shape 10 and delete the selection.