Synonyms for Trumpeter (same or very similar meaning)
WordNet sense 1 (a musician who plays the trumpet or cornet):
cornetist
WordNet sense 2 ((formal) a person who announces important news):
herald
WordNet sense 3 (large pure white wild swan of western North America having a sonorous cry):
Cygnus buccinator, trumpeter swan
From the ODE community, based on WordNet
add/edit