In song, a girl or a man perhaps (6)

I believe the answer is:
'in song a girl' is the definition.
I can't tell whether this defines the answer.
'or a man perhaps' is the wordplay.
'perhaps' indicates anagramming the letters.
'or'+'a'+'man'='oraman'
'oraman' with letters rearranged gives 'RAMONA'.
Can you help me to learn more?