Related Clues:

• The sound of the number one swallowed
• '1/7, perhaps, the put an end to 8 down (3)'
• What the swallow did and would be no more after half a century
• What one did to make one so fed up
• Had some cake
• Got things down
• Enjoyed hors d'oeuvres, say
• Didn't go fast?
• Took in one over seven, by the sound of it
• Dug in, so to speak
• Put away at dinnertime
• Had a business lunch
• Foraged successfully
• Had a bone to pick?
• Had wings?