Hailed deer and get upset (7)
I believe the answer is:
greeted
'hailed' is the definition.
(I've seen this in another clue)
'deer and get upset' is the wordplay.
'and' is a charade indicator (letters next to each other).
'upset' indicates an anagram.
'deer' put after 'get' is 'getdeer'.
'getdeer' anagrammed gives 'GREETED'.
(Other definitions for greeted that I've seen before include "Acknowledged" , "Saluted, hailed" , "Welcomed warmly" , "Said hello" .)