Some budget changes make a deep impression (4)
I believe the answer is:
etch
'make a deep impression' is the definition.
(I've seen this before)
'some budget changes' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'ETCH' is hidden within 'budget changes'.
(Other definitions for etch that I've seen before include "Make designs" , "Eat away with acid" , "Use acid to cut design" , "Make a deep impression" , "Delineate" .)