Related Clues:

• With 38-Across, what the four key parts of this puzzle are
• Deal
• Sports page news
• Reciprocity
• Disgruntled player's demand
• Give this for that
• Part of WTO
•     Give and take
• Line of business
• Clientele
• Commerce
• Exchange (as A and R in this puzzle)
• Something to haggle over
• Even trade
• Livelihood