Outmoded dictionary location of “item” (4,2)
I believe the answer is:
past it
'outmoded dictionary' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'location of item' is the wordplay.
'location of' becomes 'past' (I can't justify this - if you can you should believe this answer much more).
'item' becomes 'it' (I've seen this in other clues).
'past'+'it'='PAST IT'
Can you help me to learn more?
(Other definitions for past it that I've seen before include "Beyond the age of effectiveness, too old" , "no longer fresh" , "undrinkable?" , "No longer in one's prime" , "Getting over the hill" .)