Rap soon confused singer (7)
I believe the answer is:
soprano
'singer' is the definition.
(type of singing voice)
'rap soon confused' is the wordplay.
'confused' indicates an anagram.
'rap'+'soon'='rapsoon'
'rapsoon' is an anagram of 'SOPRANO'.
(Other definitions for soprano that I've seen before include "Norman, perhaps" , "Isolde, Violetta or 25" , "Producer of high-pitched sounds" , "High singing voice" , "Female singing voice" .)