Possible Clues:

• Calm period after politician welcomed by French head
• Valley to regard as being comfortably warm?
• Bad mood: downed mild
• Mild casual worker given ultimately meagre level of pay
• Moderate anger at end of voyage
• Persuade European accepting time is fair
• Fair charge ultimately included in cost for part-time staff?
• Fair time invested in medium wave, ultimately
• Abstemious office worker's energy and speed
• Persuade European assuming period is fair