About to cry (7)
(Other definitions for tearful that I've seen before include "Lachrymose, blubbering" , "visibly distressed" , "Visibly upset" , "Inclined to cry" , "Lachrimose" .)
'about to cry' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for teary that I've seen before include "Crying" , "Emotional" , "Watery" , "Weepy" , "Lachrymose" .)