The most common and most likely answer to this crossword clue is the 7 letter word CENTAVO
I've seen this crossword clue in The Daily Telegraph
C
E
N
T
A
V
O
More clues leading to the result CENTAVO
- Tax in one country initially raised money abroad
- A slice of decent avocado in a little bread
- Foreign money, once exchanged, includes returned tax
- Money wasted at once, very little saved
- Dicky once having concealed tax when raising money abroad
- Can veto remarkably small amount of money
- Not much money once VAT has been removed
- Perhaps can vote for change
- US coin and a very old coin from Cuba
- Covet an unusual coin
Buddy explains!

The straight part
We know that "small amount of money" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case small amount of money = centavo.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 CENTAVO mean?
CENTAVO noun- Currency unit (hundredth of a peso) in Mexico
- A similar subdenomination of various other currencies.