Possible Clues:

• Small item of food served with drinks
• Small piece of savoury food
• Bite is capable of 22
• Caviar on a cracker, e.g
• Bit of posh food may take off
• Cold scruff welcomes a bite to eat
• Hors d'oeuvres bit
• Snack for a nun finally squeezing into batman costume
• Nibble on a toothpick
• After his century a primate may have his snack