Cut out; tax (6)
I believe the answer is:
excise
I believe this clue is a double definition.
'cut out' is the first definition.
(excise can mean to cut out or remove)
'tax' is the second definition.
(I know that excise is a more specific form of the action tax)
(Other definitions for excise that I've seen before include "Cut out; commodity tax" , "Duty; cut out" , "that wretches hatefully collect" , "Tax on certain goods and commodities" , "A tax to be cut out, perhaps" .)