The most common and most likely answer to this crossword clue is the 4 plus 9 letter word GOOD SAMARITAN
I've seen this crossword clue in The Times
G
O
O
D
S
A
M
A
R
I
T
A
N
More clues leading to the result GOOD SAMARITAN
- Trouble is to do with anagram helper
- I go to a sad man in distress? That could be about right
- A dragon aims to, changing into a very helpful person
- Neighbourly type from somewhere in India installing radio mast for broadcasting
- Freight train crashed blocking a motorway – a helping hand is required
- Merchandise in a mart arranged by a helper
- One in adversity needs him
Buddy explains!

The straight part
We know that "I go to a sad man in distress?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case i go to a sad man in distress? = good samaritan.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.