Slow and laborious worker - PC before red revolution (7)
I believe the answer is:
plodder
'slow and laborious worker' is the definition.
I can't tell whether this definition defines the answer.
'pc before red revolution' is the wordplay.
'pc' becomes 'plod' (informal term for a police officer).
'before' is a charade indicator (letters next to each other).
'revolution' says the letters should be written backwards.
'red' backwards is 'der'.
'plod'+'der'='PLODDER'
Can you help me to learn more?
(Other definitions for plodder that I've seen before include "Slow dull worker" , "One who walks laboriously or works slowly" .)