Possible Clues:

• Jailers
• Christmas dinners have no starter for old prison officers
• Jailers ... or a hint to 'unlocking' four answers in this puzzle
• Keepers of birds gobbling first bit of nutrition
• Country's imprisoning any number -- jailers here are old-fashioned
• Old jailers try to escape shift, perhaps
• Jailers need, primarily, to keep inside the seasonally condemned
• Prison staffers
• In gaol, would one get them for Christmas around the North?