Unwilling to go forward and put pig in new home? (5)

I believe the answer is:
resty
'unwilling to go forward' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'put pig in new home?' is the wordplay.
'put' becomes 'rest' (resting is a kind of putting).
'pig in new home?' becomes 'y' (I can't explain this - if you can you should believe this answer much more).
'rest'+'y'='RESTY'
'and' is the link.
Can you help me to learn more?
(Another definition for resty that I've seen is " Sluggish".)
