Everything German involved in oversight claims (7)
I believe the answer is:
alleges
'claims' is the definition.
(I've seen this before)
'everything german involved in oversight' is the wordplay.
'everything' becomes 'all' (all things).
'german' becomes 'g' (abbreviation).
'involved in' indicates putting letters inside.
'oversight' becomes 'ees' (I can't explain this - if you can you should give a lot more credence to this answer).
'g' going into 'ees' is 'eges'.
'all'+'eges'='ALLEGES'
Can you help me to learn more?
(Other definitions for alleges that I've seen before include "Declares to be the case without proof" , "Holds" , "Accuses without proof" , "Claims" , "States without proof" .)