Cryptic crossword clue
Unaware patent has line I inserted 9

The most common and most likely answer to this crossword clue is the 9 letter word OBLIVIOUS

I've seen this crossword clue in The Sunday Telegraph
O
B
L
I
V
I
O
U
S


Buddy explains!

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 OBLIVIOUS mean?

OBLIVIOUS adjective
  1. (usually followed by to or of) Lacking awareness; unmindful; unaware, unconscious of.
  2. Failing to remember; forgetful.

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