Clue: Bride at Savoy announcing herself in agitation? (10)
Answer: IMPATIENCE
Explanation: Bride at Savoy announcing herself in agitation? (10)
In Gilbert & Sullivan's *Bunthorne's Bride*, (aka *Patience*), the bride is called Patience, so may announce** I'M PATIENCE **The Savoy refers to the theatre that the opera is most commonly associated with.