Related Clues:

• Summer is more dismal when there's no sun
• Run, avoiding large snake
• Common viper
• Dread (anag)
• Summer hazard for ophiophobes
• Something you have to reckon with, on country walks?
• A common viper
• He's making an extension for an exhibit in the reptile house
• A summer snake
• The common viper
• It slithers along the counter
• Daughter, dear, wandering about in the country is dangerous
• Venemous snake
• Snake - one may be scaled, except for head
• Slipper with a zigzag pattern?