Damage section of bidet rim entirely (9)
I believe the answer is:
detriment
'damage' is the definition.
(I know that detriment is a type of damage)
'section of bidet rim entirely' is the wordplay.
'section of' says the answer is hidden in the clue.
'DETRIMENT' is hidden in the letters of 'bidet rim entirely'.
(Other definitions for detriment that I've seen before include "Damage, loss" , "hurt" , "State of being harmed or damaged" , "Harm, damage" , "Possible loss" .)