Discount place for a cistern opening in Knightsbridge (8)
I believe the answer is:
overlook
'discount' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for overlook that I've seen before include "Ignore or fail to notice" , "Fail to observe or decide to ignore" , "Give a view from above - miss" , "Miss; forgive" , "Fail to observe or consider" .)