Possible Clues:

• Plan to change text colleague's penned
• Referee taking time's deliberate
• Chew over
• Consider referee must possess ultimate in self-restraint
• Think, or deem, it wrong, at being let into
• Contemplate changing both date and time
• Think the companion is about to revise it
• Think how to adapt during end game
• Consider change when friend comes round
• Think how to reconcile parties without tension