The most common and most likely answer to this crossword clue is the 6 letter word PUNJAB
I've seen this crossword clue in The Daily Telegraph
P
U
N
J
A
B
More clues leading to the result PUNJAB
- Play on words to dig somewhere in India
- State of play on words agreed in Europe with Britain’s leader
- State needs humour injection
- State injection must support most of weak
- Evidence of wit, that might prevent disorder in Asian border region
- Joke to needle Asian region
- Joke precedes brief medical procedure in subcontinental area
- . State: “Quip and punch”
- State word play for 'an injection'
- State something amusing, when in North India
Buddy explains!

The straight part
We know that "subcontinental area" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case subcontinental area = punjab.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.