Spiteful communist about to wander aimlessly (7)
I believe the answer is:
meander
'wander aimlessly' is the definition.
(I've seen this in another clue)
'spiteful communist about' is the wordplay.
'spiteful' becomes 'mean' (synonyms).
'communist' becomes 'red' (red can informally mean communist).
'about' shows that the letters should be reversed in order.
'red' reversed gives 'der'.
'mean'+'der'='MEANDER'
'to' is the link.
(Other definitions for meander that I've seen before include "circuitous route" , "Aimless course" , "roundabout route" , "Wander without aim or direction" , "Wandering direction" .)