Related Clues:

• In a doctor there might be a hiatus like this
• A might steer clear of nothing like this
• When something goes, that's what it leaves
• A five in the whole (by the sound of it) of the town
• The family doctor has a space in him
• A GP might have nothing in him
• Longtime mall chain
• Narrow space
• Space between peaks
• No longer in force
• Trendy clothing giant
• Hollow space
• Not valid or legally binding
• Totally empty
• Hoover, e.g