The most common and most likely answer to this crossword clue is the 6 letter word AIDING
I've seen this crossword clue in The Daily Telegraph
A
I
D
I
N
G
Buddy explains!
The straight part
We know that "Help" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case help = aiding.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 AIDING mean?
AIDING verb- To provide support to; to further the progress of; to help; to assist.
- To climb with the use of aids such as pitons.
- The act of one who aids or assists.