The term POET'S SUBSECTION can be solved by the crossword solution STANZA, which is a six-letter word. A STANZA is a poetic form of a group of lines within a poem, usually set off from other stanzas by a blank line or indentation. Stanzas are often composed of two or more lines that share a rhyme and/or have a consistent meter. Stanzas can also be used to create structure within a poem, as each STANZA may contain a different theme or idea.