Related Clues:

• Clear relation, suppressing the ending, uplifted work
• Clean with Liquid-Plumr
• Remove an obstruction, from a drain say
• Run a snake through
• Clear a foreign call from head of The Branch
• Get the flow to go
• Turn up after relative almost gets clear
• Use a snake on, say
• Rid of obstruction
• Clear, like a drainpipe
• Decongest