The most common and most likely answer to this crossword clue is the 9 letter word POSITIVES
I've seen this crossword clue in The Daily Telegraph
P
O
S
I
T
I
V
E
S
Buddy explains!
The straight part
We know that "Good things" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case good things = positives.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 POSITIVES mean?
POSITIVES noun- A thing capable of being affirmed; something real or actual.
- A favourable point or characteristic.
- Something having a positive value in physics, such as an electric charge.
- (grammar) A degree of comparison of adjectives and adverbs.
- (grammar) An adjective or adverb in the positive degree.
- A positive image; one that displays true colors and shades, as opposed to a negative.
- The positive plate of a voltaic or electrolytic cell.
- A positive result of a test.