Alert (5)
'alert' is the definition.
(synonyms)
This is all the clue.
(Other definitions for aware that I've seen before include "Cognizant" , "Acquainted with or conscious of" , "Conscious or having knowledge of" , "Having knowledge (of fact)" , "Having knowledge of, informed" .)
'alert' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for agile that I've seen before include "athletic" , "Able to move nimbly" , "Mentally acute" , "Nimble, lithe" , "Moving quickly and easily" .)
(Other definitions for email that I've seen before include "Electronic message" , "Digital message" , "Messages via the internet" , "Spam perhaps" , "Post" .)
'alert' is the definition.
(on the ball can mean alert or paying attention)
This is all the clue.
(Other definitions for on the ball that I've seen before include "like a balancing seal?" , "players sometimes sign name here" , "Alert and practical - during soccer match?" , "Properly alert" , "Wide awake" .)
'alert' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for on ones toes that I've seen before include "Alert; where the interfering tread" , "ready" .)
'alert' is the definition.
(thesaurus)
This is the entire clue.
(Another definition for responsive that I've seen is " quick to react".)
'alert' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for warn that I've seen before include "Notify in advance of danger" , "Advise" , "Make aware of danger" , "Alert" , "Give a caution to" .)