The most common and most likely answer to this crossword clue is the 7 letter word UNAWARE
I've seen this crossword clue in The Times
U
N
A
W
A
R
E
More clues leading to the result UNAWARE
- Ignorant girl fighting anyone in the end
- Lacking knowledge of course, with no starters
- Erect a pale in river in the dark
- Ignorant to have no starter with fish dishes?
- Ignorant article in Le Monde about a conflict
- Ignorant, a female in Paris about a conflict
- River banks washed out, raised area in the dark
- Ignorant article in Le Monde about American conflict
- Oblivious of finely-crafted work by Stubbs?
- Oblivious in Cameroun — a war expected
Buddy explains!

The straight part
We know that "Ignorant" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ignorant = unaware.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 UNAWARE mean?
UNAWARE adjective- Not aware or informed; lacking knowledge.
- Not noticing; paying no heed; thoughtless; inattentive.