The most common and most likely answer to this crossword clue is the 8 letter word NOTIFIED
I've seen this crossword clue in The Daily Telegraph
N
O
T
I
F
I
E
D
More clues leading to the result NOTIFIED
Buddy explains!

The straight part
We know that "Told" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case told = notified.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 NOTIFIED mean?
NOTIFIED verb- To give (someone) notice (of some event).
- To make (something) known.
- To make note of (something).