Answer:
Against the sun I protect your eyes and am often worn on the face of spies
What's orange and sounds like a parrot?
I go up but never come down. What am I?
You cannot keep me until you have given me. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.