Inform about a communist agreement that's fair (6,4)
I believe the answer is:
square deal
'agreement that's fair' is the definition.
I can't tell whether this definition defines the answer.
'inform about a communist' is the wordplay.
'inform' becomes 'squeal' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'about' indicates putting letters inside.
'communist' becomes 'red' (red can informally mean communist).
'a'+'red'='ared'
'squeal' placed around 'ared' is 'SQUARE DEAL'.
Can you help me to learn more?
(Other definitions for square deal that I've seen before include "fair treatment" , "Fair trade" , "Fair transaction" .)