Perhaps stuff Scot's to put back (3)
I believe the answer is:
eat
'back' is the definition.
The answer and definition can be both related to change as well as being verbs in their base form.
Maybe you can see a link between them that I don't see?
'perhaps stuff scot's to' is the wordplay.
'perhaps' becomes 'depends' (I've seen this in another clue).
'stuff' indicates the central letters (I've seen 'stuffing' mean this).
'scot's to' becomes 'at' (I can't justify this - if you can you should believe this answer much more).
The centre of 'depends' is 'e'.
'e'+'at'='EAT'
'put' is the link.
Can you help me to learn more?
(Other definitions for eat that I've seen before include "Be corrosive" , "get stuck in" , "Corrode" , "Make food disappear" , "Take food" .)