The most common and most likely answer to this crossword clue is the 7 letter word ALERTED
I've seen this crossword clue in Financial Times
A
L
E
R
T
E
D
More clues leading to the result ALERTED
- Warned treadle is faulty
- Given tip-off tenor’s drunk beer and wine? On the contrary
- Warned treadle is unreliable
- Broken treadle given a warning notice
- Made aware Welshman is entertaining Irish broadcaster
- Beer being given to right old rocker makes one alarmed
- Notified of danger from treadle
- Warned of related crackpot
- A little wheeler-dealer tediously given a warning
Buddy explains!

The straight part
We know that "Given tip-off" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case given tip-off = alerted.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 ALERTED mean?
ALERTED verb- To give warning to.
- Having been made alert; having been made attentive, alarmed or warned of something coming soon.