Expose Trump, foul army and silly gossip mongers (6,4)
I believe the answer is:
rumour mill
'expose trump foul army and silly' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'gossip mongers' is the wordplay.
'gossip' becomes 'rumour' (rumour is a kind of gossip).
'mongers' becomes 'mill' (I can't explain this - if you can you should give a lot more credence to this answer).
'rumour'+'mill'='RUMOUR MILL'
Can you help me to learn more?
(Another definition for rumour mill that I've seen is " producing works of fiction?".)
