Calls around noon after Washington's intimations of danger (8)
I believe the answer is:
warnings
'intimations of danger' is the definition.
'calls around noon after washington's' is the wordplay.
'calls' becomes 'rings' ('ring' can be a synonym of 'call'**).
'around' is an insertion indicator.
'noon' becomes 'n'.
'after' is a charade indicator (letters next to each other).
'washington' becomes 'wa'.
'rings' going around 'n' is 'rnings'.
'rnings' after 'wa' is 'WARNINGS'.
(Other definitions for warnings that I've seen before include "Words of caution" , "Alerts" , "Cautionary messages of danger" , "Messages informing of danger" , "Cautions against danger" .)