Crossword Genius

One may help bidet spill - forbidding details! (7)

Ross

I believe the answer is:

tipster

I'm a little stuck... Click here to teach me more about this clue!

'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" .)

I've seen this clue in the Sydney Morning Herald.
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