The most common and most likely answer to this crossword clue is the 7 letter word TROUBLE
I've seen this crossword clue in The Guardian
T
R
O
U
B
L
E
More clues leading to the result TROUBLE
- Difficulty beginning to trace foreign currency
- Tiny piece of this bread from Belarus is such bother!
- New butler admitting old problem
- He abandons the Russian currency, creating difficulty
- Problem taking time and money abroad
- Difficulty replacing our belt
- Getting tense over money – bother!
- Take pains to get money from Russia after start of tour
- Joint currency problem
- Bother, finishing in airport with foreign currency
Buddy explains!

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 TROUBLE mean?
TROUBLE noun- A distressing or dangerous situation.
- A difficulty, problem, condition, or action contributing to such a situation.
- A violent occurrence or event.
- Efforts taken or expended, typically beyond the normal required.
- A malfunction.
- Liability to punishment; conflict with authority.
- A fault or interruption in a stratum.
- To disturb, stir up, agitate (a medium, especially water).
- To mentally distress; to cause (someone) to be anxious or perplexed.
- In weaker sense: to bother or inconvenience.
- To take pains to do something.
- To worry; to be anxious.
- (Australian rhyming slang) Wife.