Trumpet (4)
'trumpet' is the definition.
(I know that trumpet can be written as horn)
This is the entire clue.
(Other definitions for horn that I've seen before include "Possession of huntsman or deer" , "Cusp" , "Instrument - rhino's feature" , "being blown in the wind?" , "Warning device on a vehicle" .)
'trumpet' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for blare that I've seen before include "Sound loud and harsh" , "Sound loudly" , "Strident sound" , "Roar" , "Loud harsh noise" .)