Cut in the tax establishment (3)
I believe the answer is:
axe
'cut' is the definition.
(I've seen this before)
'in the tax establishment' is the wordplay.
'in' indicates a hidden word.
'AXE' is hidden in the letters of 'tax establishment'.
(Other definitions for axe that I've seen before include "saw alternative?" , "Make redundant" , "Terminate; chopper" , "Sack with cleaver?" , "Cut costs or staff drastically" .)