Requested nothing, and not a German article (2,5)
I believe the answer is:
on order
'requested' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'nothing and not a german article' is the wordplay.
'nothing' becomes 'O' (looks like zero - 0).
'and not' becomes 'nor' ('nor' means 'and also not').
'a german article' becomes 'der' (definite article in German).
'o'+'nor'+'der'='ON ORDER'
Can you help me to learn more?
(Another definition for on order that I've seen is " Awaiting delivery".)