The most common and most likely answer to this crossword clue is the 4 letter word BAHT
B
A
H
T
More clues leading to the result BAHT
- Strike securing hard currency
- British and Asian not entirely backing the latter’s currency?
- Pick up the bill, a case for hard foreign currency
- First of all, Bangkok always has this currency
- Necessary for Thai bantamweight to lose eight in a row
- Husband in club makes money abroad
- Ready to deal in Bangkok communicators that I like to thwart
- Graduate with nothing less than hot money
- Black hat crushed for Thailand cash
Buddy explains!

The straight part
We know that "Necessary for Thai" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case necessary for thai = baht.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 BAHT mean?
BAHT noun- The official currency of Thailand, equal to 100 satang.
- Without (Yorkshire dialect, famously part of the song title On Ilkla Moor Baht 'at)