Stay silent about speaker and writer (10)
I believe the answer is:
moratorium
'stay' is the definition.
(thesaurus)
'silent about speaker and writer' is the wordplay.
'silent' becomes 'mum' (keep mum).
'about' means one lot of letters goes inside another.
'speaker' becomes 'orator' (orator is a kind of speaker).
'and' is a charade indicator (letters next to each other).
'writer' becomes 'I' (the person who is writing these clues).
'orator'+'i'='oratori'
'mum' enclosing 'oratori' is 'MORATORIUM'.
(Other definitions for moratorium that I've seen before include "Prohibition" , "Agreed pause in activity" , "agreed postponement" , "Temporary halt in activity" , "Legal delay" .)