Reportedly where one might see vinegar everywhere (3,4,3,5)
I believe the answer is:
all over the place
'everywhere' is the definition.
(I've seen this in another clue)
'reportedly where one might see vinegar' is the wordplay.
I cannot really understand how this works, but
'reportedly' could be 'e' (I've seen this in other clues) and 'e' is found within the answer.
'one' could be 'o' (I've seen this in other clues) and 'o' is located in the answer.
'see' could be 'v' (Latin 'vide', used to direct a reader to a source) and 'v' is located in 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 all over the place that I've seen before include "Confused" , "mess" , "in disarray" , "everywhere" , "not orderly!" .)