Boldly face America's modern dystopia (5,3,5)
I believe the answer is:
brave new world
'modern dystopia' is the definition.
The definition suggests a singular noun which matches the answer.
'boldly face america's' is the wordplay.
'boldly' becomes 'brave' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'face' means one lot of letters go next to another.
'america' becomes 'newworld' (I've seen this before).
'brave'+'newworld'='BRAVE NEW WORLD'
Can you help me to learn more?
(Other definitions for brave new world that I've seen before include "reaction from Miranda on seeing Neapolitan court" , "dystopian novel" , "Futuristic novel by 16 dn" , "Book by Aldous Huxley" , "Title" .)