Wherein a hairdresser may arrange loans? (5)

I believe the answer is:
salon
'wherein a hairdresser' is the definition.
I can't judge whether this defines the answer.
'arrange loans?' is the wordplay.
'arrange' indicates anagramming the letters.
'loans' is an anagram of 'SALON'.
'may' is the link.
Can you help me to learn more?
(Other definitions for salon that I've seen before include "Hairdresser's premises" , "Place of business for eg beautician" , "Drawing-room" , "Hairdresser's establishment" , "Parisian art exhibition" .)