Related Clues:

• Sounds as if this tum went down privately
• Took on too much water
• Went down like a rock
• Got one's uniform dirty, maybe
• Got worse, in the standings
• Headed to bed?
• Headed for home, in a way
• Went headfirst, maybe
• Declined a bit
• Cruel, unloved doctor
• Tumbled down hill
• Cut downhill
• Deadly stretch of moorland
• Knock down - mountain
• Came down - Scottish mountain