The firs chopped? One may get a dramatic change of scenery (7)
I believe the answer is:
shifter
'a dramatic change of scenery' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'the firs chopped?' is the wordplay.
'chopped?' indicates anagramming the letters (letters chopped or smashed up).
'the'+'firs'='thefirs'
'thefirs' anagrammed gives 'SHIFTER'.
'one may get' is the link.
Can you help me to learn more?
(Other definitions for shifter that I've seen before include "Mover of scenery" , "One who moves a thing" .)