Stated: “Last month Liberal will get ahead of a Communist” (8)
I believe the answer is:
declared
'stated' is the definition.
(I know that stated can be written as declared)
'last month liberal will get ahead of a communist' is the wordplay.
'last month' becomes 'dec' (short for December, last month of the year).
'liberal' becomes 'l' (abbreviation).
'will get' is a charade indicator (letters next to each other).
'ahead of' becomes 'a' (I can't explain this - if you can you should believe this answer much more).
'a communist' becomes 'red' (red can informally mean communist).
'dec'+'l'+'a'+'red'='DECLARED'
(Other definitions for declared that I've seen before include "Closed an innings" , "Announced publicly" , "Named the trump suit in card game" , "Spoke or said dramatically" , "Announced, proclaimed" .)