Get things wrong, as you might with Oxford? (3,4,4,2,2)
I believe the answer is:
put ones foot in it
'might with oxford?' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'get things wrong as you' is the wordplay.
I cannot quite understand how this works, but
'as' could be 'in' (I've seen this in other clues) and 'in' is present in the answer.
'you' could be 'one' (I've seen this before) and 'one' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for put ones foot in it that I've seen before include "usual way to use a sock" , "as one might with one's trainer" , "Commit a faux pas?" , "Make a tactless blunder (3,4,4,2,2)" , "Bungle" .)