Lying to wrong pro in dumb performance (12)
I believe the answer is:
misinforming
'lying' is the definition.
The definition and answer can be both to do with communicating as well as being present participle verbs.
Perhaps you can see a link between them that I don't see?
'wrong pro in dumb performance' is the wordplay.
'wrong' becomes 'sin' (wrong can mean a sin or crime).
'pro' becomes 'for' (I've seen this before).
'in' is an insertion indicator.
'dumb performance' becomes 'miming' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'sin'+'for'='sinfor'
'sinfor' placed inside 'miming' is 'MISINFORMING'.
'to' acts as a link.
Can you help me to learn more?