Become aware you can make it come true (7)
I believe the answer is:
realise
'become aware' is the definition.
(to realise something is to become aware of it)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for realise that I've seen before include "work out" , "effect" , "Come to understand - see liar (anag)" , "Get the idea?" , "Come to be aware" .)