Overturn dog and it turns back (3,2)
I believe the answer is:
tip up
'overturn' is the definition.
(I've seen this before)
'dog and it turns back' is the wordplay.
'dog' becomes 'pup' (I have seen 'Young dog ' mean 'pup' so perhaps 'dog' could also mean 'pup').
'and' is a charade indicator (letters next to each other).
'turns back' says the letters should be written backwards.
'it' backwards is 'ti'.
'pup' after 'ti' is 'TIP-UP'.
(Other definitions for tip up that I've seen before include "overturn" , "More left on plate" .)