Could somebody please parse this for me ...
38d - Olive’s gen(ero)us giving 90% discount to number of theatres (4)
I think the 3 letters in brackets need to be removed before solving.
I have the answer but just cannot see the wordplay - I've gone down the "number of theatres" as something that numbs, but to no avail and also put the answer into the Chambers app with an * at both ends - but still nothing!