Warned or made aware of (7)
I believe the answer is:
alerted
I believe this clue is a double definition.
'warned' is the first definition.
(alerting is a kind of warning)
'made aware of' is the second definition.
(I've seen this in another clue)
(Other definitions for alerted that I've seen before include "Tipped off" , "Warned, made aware" , "Altered, having been put on guard" , "Related about warning notified" , "Given warning" .)