Helping party election, heading north (6)
I believe the answer is:
dollop
'helping' is the definition.
(I've seen this before)
'party election heading north' is the wordplay.
'party' becomes 'do' (do is a kind of party).
'election' becomes 'poll' (I've seen this before).
'heading north' says the letters should be written backwards.
'poll' reversed gives 'llop'.
'do'+'llop'='DOLLOP'
(Other definitions for dollop that I've seen before include "Quality of eg cream" , "Large shapeless lump" , "serving food, perhaps" , "great lump" , "Small, unmeasured amount" .)