Wholesale denial (6)
I believe the answer is:
retail
This clue might be a double definition.
'wholesale' is the first definition.
(thesaurus)
'denial' is the second definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
Can you help me to learn more?
(Other definitions for retail that I've seen before include "Sell in small quantities" , "Sell (goods) to the public" , "Trade selling goods to the general public" , "Shopwork" , "report" .)