Organised publicity campaign is almost complete rubbish (5)
I believe the answer is:
drive
'organised publicity campaign is' is the definition.
I can't tell whether this defines the answer.
'almost complete rubbish' is the wordplay.
'almost complete' means to remove the last letter (most but not all of the word).
'rubbish' becomes 'drivel' (I've seen this before).
'drivel' with its final letter taken away is 'DRIVE'.
Can you help me to learn more?
(Other definitions for drive that I've seen before include "Be in charge of car in motion" , "Motivation, energy" , "Motor < car storage space" , "Force into action, impel" , "Ambition - steer" .)