Watchful and ready (5)

I believe the answer is:

alert

'watchful and ready' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for alert that I've seen before include "Danger warning" , "Watchfully awake" , "Signal danger" , "Watchful; warning" , "Vigilant, watchful" .)

I've seen this clue in the Universal, the Newsday.com and the Newsday.

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