The most common and most likely answer to this crossword clue is the 9 letter word HEADACHES
H
E
A
D
A
C
H
E
S
Buddy explains!

The straight part
We know that "troubles" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case troubles = headaches.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 HEADACHES mean?
HEADACHES noun- A pain or ache in the head.
- A nuisance or unpleasant problem.