Let's break down why:
* "Brazen lungs" is a metaphor. "Brazen" implies loudness and boldness, while "lungs" suggests the source of the sound. This could describe a loud clock's ticking, a person's voice, or even a powerful natural force.
* "Clock" is a concrete image, representing time.
Possible interpretations:
* A powerful, relentless force of time: The "brazen lungs" could symbolize the unrelenting passage of time, as marked by the clock.
* A loud, mechanical voice: The "clock" could be personified, its ticking likened to a loud voice.
* A person's strong voice: The "brazen lungs" could describe a person's powerful voice, perhaps used to "call the time" or announce something significant.
Without further context, it's difficult to determine the exact meaning and literary device. It's possible that this phrase is simply an evocative image created by the author.
If you provide the source of this phrase, I can offer a more specific analysis.