Follow communist, gentle pace (7)
I believe the answer is:
dogtrot
'gentle pace' is the definition.
(I've seen this before)
'follow communist' is the wordplay.
'follow' becomes 'dog' (dog can mean to follow or torment).
'communist' becomes 'trot' (short for Trotskyist).
'dog'+'trot'='DOGTROT'
(Other definitions for dogtrot that I've seen before include "Gentle easy pace" , "Slowish running pace of canine analogy" , "An easy run of canine origin" , "running at gentle pace" , "Gentle paced run" .)