Possible Clues:

• This willl allow one to do something about one's straight hair
• Consent form
• Leave instruction for hairdresser?
• ... grant, to rearrange it
• Document of authorisation, if you don't want straight hair?
• Licence to style a woman's hair thus?
• Document order given to hairdresser?
• Allow, sanction
• Let happen
• Builder's need, often