Possible Clues:

• Fatty extremity of a cooked fowl
• Father and son see badly cooked goose, in the end
• Fatty extremity of a cooked chicken etc.
• Father's offspring serves up starter eaten with piece of chicken (4'1,4)
• Father's sixth sense for a bit of a chicken (4'1,4)
• Bird's tail opens out in extravagant display
• Father seen, so uncertain, as bit of a chicken