Possible Clues:

• Release as from prison
• Tailor, in a way
• Discharge from prison or enlarge garment
• Release, as from confinement
• Reveal there's a loophole in the contract
• An opportunity to escape from a fix
• Expand, as waistbands
• The whole of France available for rent?
• The French solicitor might release this
• Release or blab secret