Warning (6)
'warning' is the definition.
(threat is a kind of warning)
This is all the clue.
(Other definitions for threat that I've seen before include "Declaration of intention to harm another" , "Intimidation or warning" , "Possibility of danger" , "Statement of intent to do harm" , "Endangerment" .)
'warning' is the definition.
(caveat is a kind of warning)
This is the entire clue.
(Other definitions for caveat that I've seen before include "'Warning, proviso (6)'" , "Legal caution" , "Warning in a legal document" , "At cave (anag.)" , "'Caution, warning (6)'" .)
'warning' is the definition.
(a portent is a sign or warning)
This is the entire clue.
(Other definitions for portent that I've seen before include "Sign of thing to come" , "Warning of momentous event" , "Prophetic sign" , "Evil omen" , "Sign, omen" .)
'warning' is the definition.
(as in a police caution)
This is all the clue.
(Other definitions for caution that I've seen before include "Caveat, prudence" , "A surprising person" , "Care, prudence" , "Hoot" , "Carefulness - yellow card?" .)
'warning' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for alarm that I've seen before include "Consternation: kind of clock" , "Deep concern" , "Mild panic" , "Noise giving warning" , "Tocsin" .)
'warning' is the definition.
(alert is a kind of warning)
This is the entire clue.
(Other definitions for alert that I've seen before include "Vigilant - warning" , "Watchful, sharp" , "Prompt" , "Signal danger" , "In state of watchfulness" .)
(Other definitions for early that I've seen before include "Primitive - ahead of time" , "Advanced" , "Untimely" , "In good time" , "near beginning" .)
'warning' is the definition.
(cautioning is a kind of warning)
This is the entire clue.
'warning' is the definition.
(I've seen this before)
This is the entire clue.
'warning' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tip-off that I've seen before include "Piece of secret information" , "Warn helpfully" , "Piece of confidential information" , "Confidential hint" , "Alert" .)
(Other definitions for look out that I've seen before include "as Wenceslas did" , "Be watchful" , "Beware!" , "A view of the future" , "makes one be careful!" .)