Ask yourself, is it a miracle? (6)

I believe the answer is:
wonder
'miracle?' is the definition.
(I've seen this in another clue)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for wonder that I've seen before include "Something amazing" , "amazement" , "Ponder" , "Phenomenon - marvel at it" , "Scene of Alice's adventures" .)
