The most common and most likely answer to this crossword clue is the 5 letter word READY
I've seen this crossword clue in Financial Times
R
E
A
D
Y
More clues leading to the result READY
- Prepared to study history at last
- Yen after study to make dosh
- Prepared to study diligently, finally
- Cash circulated, requiring minimal preparation
- Prepared to study conclusion in essay
- What could be tailored for wearer today?
- Prepared to make money
- Cash column includes article that's off-the-peg
- Eager, articulate commie chap shunned by many
- Prepared to study biology at last
Buddy explains!

The straight part
We know that "Eager/money" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case eager/money = ready.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 READY mean?
READY noun- Ready money; cash
- To prepare; to make ready for action.
- Prepared for immediate action or use.
- Inclined; apt to happen.
- Liable at any moment.
- Not slow or hesitating; quick in action or perception of any kind.
- Offering itself at once; at hand; opportune; convenient.