The term 'PART OF A SONG' can be summarized as a section of a song that is composed of lyrics and music. The crossword solution for this term is 'VERSE, ' which is a section of a song that typically contains a single musical thought or idea. Verses are often separated from each other by a chorus, bridge, or instrumental interlude. Verses are usually composed of rhyming lines of lyrics and often contain a repeating melodic pattern.