1. Modifier placement: The phrase "edging her way excitedly through crowd noise" is a misplaced modifier. It sounds like the crowd noise is excitedly edging its way through something, which doesn't make sense.
2. Subject-verb agreement: The subject is "crowd noise," which is singular. The verb "was" agrees with the subject.
3. Word choice: "Deafening" is a bit too strong and doesn't accurately describe the situation.
Here are some possible ways to fix the sentence:
Option 1 (Emphasis on the noise): "The crowd noise was deafening as she excitedly edged her way through it."
Option 2 (Emphasis on the person): "She excitedly edged her way through the deafening crowd noise."
Option 3 (More descriptive): "She excitedly maneuvered through the loud, chaotic crowd, the noise almost deafening."
These revised sentences clarify the intended meaning and correctly place the modifier.