Award upset actors but not model (5)
I believe the answer is:
oscar
'award' is the definition.
(Academy Award)
'upset actors but not model' is the wordplay.
'upset' indicates an anagram.
'but not' suggests deleting specific letters.
'model' becomes 't' (Ford Model T car).
'actors' with 't' taken out is 'acors'.
'acors' anagrammed gives 'OSCAR'.
(Other definitions for oscar that I've seen before include "One close to Mike" , "trophy" , "Award by the Academy of Motion Picture Arts and Sciences" , "One of several given to Chicago" , "Develop again" .)