The most common and most likely answer to this crossword clue is the 10 letter word SWEET-TALK
S
W
E
E
T
-
T
A
L
K
More clues leading to the result SWEET-TALK
Buddy explains!

The straight part
We know that "electioneering pitch" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case electioneering pitch = sweet-talk.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SWEET-TALK mean?
SWEET-TALK noun- A manner of talking to someone in a pleasing or funny way in order to persuade them to do or believe something.
- To flatter
- To persuade using flattery