Lead pipes originally over sink (7)
I believe the answer is:
precede
'lead' is the definition.
(I know that lead can be written as precede)
'pipes originally over sink' is the wordplay.
I cannot quite understand how this works, but
'over' could be 're' and 're' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for precede that I've seen before include "Come/go before" , "Go ahead of" , "Go in front" , "Take the lead" , "Come before (something)" .)