Revolutionary drowned dossier covertly so it became saturated (6)
I believe the answer is:
sodden
'saturated' is the definition.
(synonyms)
'revolutionary drowned dossier covertly so it' is the wordplay.
'SODDEN' is hidden backwards within the letters.
However, I am uncertain how the hidden word is indicated.
'became' acts as a link.
Can you help me to learn more?
(Other definitions for sodden that I've seen before include "Soaking wet" , "Drenched, really soaked" , "Soaked to the skin" , "Completely saturated" , "Waterlogged" .)