The most common and most likely answer to this crossword clue is the 4 plus 3 letter word SINE DIE
I've seen this crossword clue in The Guardian
S
I
N
E
D
I
E
More clues leading to the result SINE DIE
- With no time set to resume, behave badly with drug, then finish
- Work I need is yet to be rescheduled
- One in dire need is lacking a date
- . German article on, say, lust and introduction to eroticism is indefinitely postponed
- Rejection of Thatcher that is unlimited
- No fixed date for the Romans
- No way at first for nasty types to be executed, no date being fixed
- Indefinitely adjourned by English following inside manoeuvring
- Mathematical function to cease existence, not having a date fixed
- One in need is troubled indefinitely
Buddy explains!
The straight part
We know that "unlimited" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case unlimited = sine die.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.