One may help bidet spill - forbidding details! (7)
I believe the answer is:
tipster
'one may help' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for tipster that I've seen before include "Adviser on betting" , "One who sells betting advice" , "One giving better advice" , "Person who points out likely race winners" , "Seller of information on racecourse etc" .)