USA misrepresented by one in individual novel (10)
I believe the answer is:
persuasion
'novel' is the definition.
(novel by Jane Austen)
'usa misrepresented by one in individual' is the wordplay.
'misrepresented' indicates an anagram.
'by' says to put letters next to each other.
'one' becomes 'i' (Roman numeral).
'in' means one lot of letters goes inside another.
'individual' becomes 'person' (an individual person).
'usa' with letters rearranged gives 'uas'.
'uas'+'i'='uasi'
'uasi' placed into 'person' is 'PERSUASION'.
(Other definitions for persuasion that I've seen before include "book" , "Piano users (anag) -- novel by 14" , "Belief" , "Jane Austen novel" , "party" .)