Related Clues:

• Common request
• Request to a guest
• Relaxed
• Letter letters
• 'We're not supplying liquor'
• Answer, in brief
• Party giver's abbr.
• Letters to answer?
• Invitation letters
• Answer an invitation
• Insouciant
• T.G.I.F. party request
• Invitation inits.
• Free-and-easy
• Guests may do it