Revelations published through German head of state (7)
I believe the answer is:
outings
'revelations' is the definition.
'published through german head of state' is the wordplay.
'published' becomes 'out' (I've seen this in other clues).
'through' becomes 'in'.
'german' becomes 'g' (abbreviation).
'head of' suggests taking the first letters.
The first letter of 'state' is 's'.
'out'+'in'+'g'+'s'='OUTINGS'
(Other definitions for outings that I've seen before include "Pleasure trips" , "Excursions, jaunts" .)