Related Clues:

• Remove from office
• Sack
• Fire
• Bounce
• Send away
• Send packing
• Throw out
• Brush aside
• Sneeze at
• Synonym for the first words of 17- and 54-Across and 11- and 31-Down
• Don't take seriously
• Send away, as a class
• Shrug off
• It's up to Sidney to send away the girl
• If Sidney turns up with a girl, sack him