Related Clues:

• Such a single, sour mixture would be heavy
• It's hard to make such a dour mixture with us
• I get sick of getting you on the phone after tea
• What a single, sour burden is
• It's single, sour and a burden (7)
• How burdensome a single, sour twist can be!
• Single, sour and severe
• I phone you after tea, though it's a bore
• One is heavy, having got sour and twisted
• A single, heavy, sour twist
• It turns so wearing to press the bell at last
• Is it up to getting around to be wearing out?
• Just a single, sour twist, but it's so burdensome
• The burden of this is single sour one
• Work that's so hard may make one dour in the USA