Possible Clues:

• Match money playing dice
• Agree to have something tossed for decision, then throw of dice
• 9 across starts inside, by the sound of it, at the same time
• Agree with officer imprisoned for speaking out
• Penny, perhaps, joining team, we hear, for match
• Agree with mint over Irish transport group acquiring initial debt
• Happen at the same time in unplanned way
• Match where, after one's tossed, team as announced comes on
• Show correspondence, including one in cypher
• Clash from copper on detectives force