This rep turned out to be a fashion icon (7)
I believe the answer is:
hipster
'be a fashion icon' is the definition.
The definition suggests a singular noun which matches the answer.
'this rep turned out' is the wordplay.
'turned out' is an anagram indicator (turn out can mean to organise).
'this'+'rep'='thisrep'
'thisrep' anagrammed gives 'HIPSTER'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for hipster that I've seen before include "kind of pants" , "Trendsetter" , "Trendy person" , "fitting below the waist" , "jazz he likes" .)