Possible Clues:

• Prone to heavy market trading
• Energetic move: four get the point
• Agreement's not quiet — I have to give voice
• Near end of play perhaps, finally lose voice
• Industrious
• Rice production up, keeping Cambodia's capital busy
• On the roster
• First section of play's initially very entertaining, and brisk
• Vigorously moving
• After the fourth part of the play 'e is on the move