Notified of danger (7)
'notified of danger' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for alerted that I've seen before include "Given signal" , "Warned, made aware" , "Given warning" , "Put on guard, raised the alarm" , "Altered, having been put on guard" .)
'notified of danger' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for warned that I've seen before include "Notified in advance" , "Cautioned about Andrew" , "Put on the alert" , "Notified of potential danger" .)