Possible Clues:

• 'The only poor fellows in the world whom anyone will flatter': Pope
• They have an inverse output
• People concerned with feet
• Backstop heartened by English linesmen
• What an inverse lot to have the little dears round around
• Pulitzer candidates
• 74- and 90Across, e.g.
• Byron and Keats
• They're well-versed
• Burns bridges, for example (but extra capital is needed)