Related Clues:

• Price of one currency in another
• Argument made by group against
• Excessive returns by Home Counties creating argument
• Argument prepared with books circulating
• Brief conversation in telecom facility
• Brief run-in
• Brief but heated argument
• Swap halfpennies and farthings, perhaps?
• Short argument
• Words with "music" or "work"
• Brief 16-Across
• Swap old threepenny bits and tanners, say?
• Fight; argument
• Replace old coins?
• Start argument