Tax cut (4)
I believe this is a double definition.
'tax' is the first definition.
(excise is a kind of tax)
'cut' is the second definition.
(I've seen this in other clues)
(Other definitions for excise that I've seen before include "Remove by cutting out" , "Expunge the tax?" , "Duty; cut out" , "Customs" , "that wretches hatefully collect" .)
(Other definitions for geld that I've seen before include "Castrate a horse, for example" , "Castrate (an animal)" .)